Editing Byleth (SSBU)

{{ArticleIcons|ultimate=y}}
{{recent release}}
{{disambig2|Byleth's appearance in ''Super Smash Bros. Ultimate''|the character in other contexts|Byleth}}
{{Infobox Character
|name = Byleth
|image = {{tabber|title1=Male|tab1=[[File:Byleth SSBU.png|250px]]|title2=Female|tab2=[[File:Byleth-Alt1 SSBU.png|250px]]|title3=Both|tab3=[[File:fighter-byleth.png|250px]]}}
|game = SSBU
|universe = {{uv|Fire Emblem}}
|availability = [[Downloadable content (SSBU)|Downloadable]]
}}
:{{Cquote|Byleth Joins Smash House!|cite=Introduction Tagline for Male Byleth}}
{{Cquote|Byleth Recruits... Byleth!|cite=Introduction Tagline for Female Byleth}}

'''Byleth''' (♂: {{ja|ベレト|Bereto}}, ♀: {{ja|ベレス|Beresu}}, ''Byleth'') is a playable character in ''[[Super Smash Bros. Ultimate]]''. Byleth was officially announced on January 16th, 2020 as the fifth and final [[Downloadable content (SSBU)|downloadable character]] from Volume 1 of the Fighters Pass. Although the male version is the default variant, the female version is available as an {{SSBU|alternate costume}}. Byleth was released on January 28th, 2020,<!--January 29th, 2020 in Pal and Japanese regions.--> and is classified as Fighter #75.

<!--The fact that M!Byleth was re-cast for FE3H has no relation to Smash. Please do not re-add this point.-->Zach Aguilar and Jeannie Tirado, who respectively voiced the male and female versions of Byleth in ''Fire Emblem: Three Houses'', reprise their roles in the overseas version, while {{iw|wikipedia|Yūsuke Kobayashi|voice actor}} and {{s|wikipedia|Shizuka Itō}} reprise their respective male and female roles in the Japanese version.

==Attributes==
{{incomplete|Give a more in depth summary of their attacks, strengths and weaknesses.}}
As mentioned by [[Masahiro Sakurai]] during the January 16, 2020 presentation, Byleth is specifically designed to be a "distance demon," a character such as {{SSBU|Marth}} or {{SSBU|Shulk}} who utilizes large hitboxes to zone out opponents at mid-range. Boasting a variety of weapons, Byleth's overall reach is fittingly long in line with his archetype, and his attacks are generally very strong; to compensate for this, Byleth has poor overall mobility, high startup and ending lag on many of his moves, and a rather short [[grab]] range. All of this makes Byleth's general gameplan very patient, as he is required to learn the opponent's habits and wait for them to make a mistake before covering their options with his range and arsenal of hard-hitting weapons. This is akin to {{SSBB|Ike}} in ''Brawl'', and reflects on his position as a "teacher" or "mentor" in his game of origin.

Like other weapon users, Byleth's attacks have [[disjointed hitbox]]es that allow him to fight at a safe distance. Neutral attack is a quick chain of attacks that act as a standard get-off-me option, especially due to the speed of Byleth's moveset. Neutral attack's infinite can easily deal a lot of damage up close. Byleth's tilts all use his sword, the [[Sword of the Creator]]. Up and forward tilts have wide hitboxes and decent speed, making them effective spacing attacks. Down tilt is a whip with the sword in chain form, giving it more effective distance and allowing it to combo into aerials. Finally, dash attack is a wide swipe forward, which allows it to punish whiffs but is also easily punishable itself. All of Byleth's up attacks emphasize the Sword of the Creator's extended chain form; up aerial causes him to lash upwards in a flurry, dealing multiple hits and acts as a good tool to deny landings or start a juggle. Its looping hits can also drag opponents downwards to initiate extended combos. Byleth's up special causes him to thrust the chain upwards to grab opponents or ledges. As a combat move, this up special can combo from certain moves, and causes an untechable [[meteor smash]] at high percentages; if used on offstage opponents, Byleth will hop off the opponent's head for a meteor smash, which can cause an unavoidable KO at high percents. As a recovery move, the sword grants Byleth a very long [[tether recovery]], which can grab [[Battlefield]]'s ledges as low as near the bottom blast line. Notably, Byleth's up special can attach to walls and perform a wall jump if it touches a wall, much like tether recoveries in ''Melee''. Altogether, these traits provide Byleth with a safe array of covering various approach options.

Byleth's other weapons grant him more specialized options. {{s|fireemblemwiki|Areadbhar}}, a lance, is used for Byleth's side moves (forward smash, forward aerial and back aerial, and side special); it has long range and uses a [[tipper]] mechanic that deals more damage at the tip of the lance. Forward smash is a slow but long-ranged stab that deals more knockback if aimed upward and tippered, allowing it to heavily punish jump options. If aimed downwards, the lance can also hit opponents grabbing ledges. Meanwhile, forward and back aerials are very effective spacing moves, even outranging those of Marth, and the tippers deal heavy knockback. Byleth's side special has him swing [[Areadbhar]] in a slow, but wide swing, and allows him to step forward if the special button is held. Its massive hitbox easily denies jump options and acts as a powerful but risky spacing option. However, all of Areadbhar's moves are very weak if the hilt lands, so proper spacing is vital; this is especially important with side special, as the sourspot deals extremely low knockback, making it possible for opponents to punish Byleth at low percents even if it lands.

{{s|fireemblemwiki|Aymr}}, an axe, is used for Byleth's down moves (down smash, down aerial, down special); it is an extremely slow, yet powerful weapon that deals high damage and knockback on all moves that use it. Down smash is slow overall, but hits very hard and can KO as early as 90%. Down aerial is a similarly slow swing downwards with extreme landing lag, but it is among the strongest meteor smashes when it lands, making it also among the most rewarding. Finally, Byleth's down special causes him to charge [[Aymr]] in a [[super armor]]ed stance, before unleashing a powerful, [[Special Zoom]]-inducing swing. It allows Byleth to pass through platforms and turn around in the opposite direction while charging, which can be used for mindgames. It also has a surprisingly wide hitbox that starts behind Byleth's head, making it much like [[Warlock Punch]]; a high-risk, high-reward move that can catch opponents by surprise.

Finally, {{s|fireemblemwiki|Failnaught}} is a bow which is used for Byleth's neutral moves (neutral aerial and neutral special). Neutral aerial is a long-lasting, wide-ranged spinning move much like {{SSBU|Palutena}}'s, making it a good option [[out of shield]] due to its fast startup, and can also initiate combos or [[edgeguard]] with its looping hits. His neutral special also charges up [[Failnaught]] with an arrow, which can be shot at two different strengths: a slow but strong arrow that acts as a sniping option and passable spacing projectile, or a very delayed shot that acts as one of the strongest projectiles in the game, which can also almost break a full shield. The charged projectile also becomes an energy projectile, making it possible to [[absorption|absorb]] it, but not [[inhale]]d nor [[Pocket]]ed. Unlike every {{SSBU|Link}}'s respective [[Bow]]s, Byleth can cancel Failnaught's charge before he reaches the delayed charge shot, though he is unable to cancel it after he reaches that point. Byleth's neutral special can also turn around before the delayed charge shot.

Byleth is not without flaws, however. Due to his mobility being among the worst in ''Ultimate'', his approach is very committal. This flaw is further stressed due to many attacks having slow startup (e.g. down smash/down aerial), narrow hitbox placements (e.g. forward/back aerials), or even both (e.g. forward smash). His dash attack, neutral aerial and side special are exceptions, but are easily punishable on shield due to their ending lag, while the lattermost is dangerously unsafe if the sweetspot does not land. This flaw becomes even more dangerous with Failnaught’s unique charge properties, as while the arrows fired from it are powerful and fast, they are equally as dangerous if reflected as Byleth cannot cancel the move after charging it halfway through. Byleth’s abundance of KO options is also a double-edged sword, as while it makes it easy for him to heavily punish mistakes, it also makes [[counterattack]]s an excellent option to punish his many KO options if used frequently.

Byleth’s grab game is also flawed. While he has an up throw that deals passable damage, a capable 0% combo starter in down throw, and a high-percentage kill option with his forward throw, his pummel is very slow and his throws in general are ineffective for starting combos due to high base knockback. When combined with his short grab, Byleth’s grab game is only useful at point blank range, and typically used to deal damage if other moves stale.

Finally, even though Byleth has a large array of KO moves, they are not always reliable. His up smash, like certain other multi-hitting up smashes, is below-average in KO power and has almost no grounded hitboxes, making it ineffective against grounded opponents. His side and up special moves have strict hitboxes that only work from a specific horizontal distance or above Byleth, respectively. His down special, despite its aforementioned strengths, is very punishable due to its startup and ending lag throughout, leaving Byleth very vulnerable to grabs. Lastly, his most reliable KO moves will only KO starting after high percentages, making it tough for him to KO effectively.

All in all, Byleth is a ranged powerhouse with great offensive potential due to his weaponry, which comes with varying uses depending on each weapon. Byleth's arsenal grants him access to a mixture of highly damaging attacks, KO options, combos, and setups. However, his slow mobility and poor overall frame data renders his approach strategic, requiring him to be very patient with his opponent and read and punish their mistakes, as a careless move on his end will easily give his opponent just as big of an opening.

==Moveset==
{{incomplete|Add more in depth information on their moves. Such as damage, move names, and other properties. Also include on-screen appearances, taunts, idle poses, and victory poses.}}
*Byleth features a multitude of weapons throughout his moveset, all which utilize the Heroes' Relics in ''Fire Emblem: Three Houses''. Each weapon is designated to a different attacking "direction".
**The [[Sword of the Creator]] is Byleth's default weapon and is wielded throughout all animations that do not involve any other weapon. It is used for Byleth's neutral attack, tilt attacks and throws, though it is also designated to upward moves like up smash, up aerial and up special. Certain moves cause the sword to change into its chain form, extending its reach.
**{{s|fireemblemwiki|Areadbhar}} is a lance wielded by {{s|fireemblemwiki|Dimitri}}. It is used for Byleth's forward and back moves, such as forward smash and back aerial. Areadbhar features a [[tipper]] mechanic similar to Marth's, with the hilt dealing comparatively low knockback and damage and the tip dealing 1.5x the damage of a hilt hit.
**{{s|fireemblemwiki|Aymr}} is an axe wielded by {{s|fireemblemwiki|Edelgard}}. It is used for Byleth's down moves, such as down smash and down special. Aymr boasts incredibly high damage and knockback on all moves that feature it, though at the cost of extreme lag.
**{{s|fireemblemwiki|Failnaught}} is a bow wielded by {{s|fireemblemwiki|Claude}}. It is used for Byleth's neutral moves, with only neutral aerial and neutral special causing Byleth to wield it. Unlike the prior weapons, Failnaught does not feature any particular traits.
{{MovesetTable
|game=SSBU
|neutralcount=3
|neutralinf=y
|neutralname=&nbsp;
|neutral1dmg=1.5%
|neutral2dmg=2%
|neutral3dmg=4.5%
|neutralinfdmg=0.4% (loop), 3.5% (last)
|neutraldesc=A knife-hand strike, followed by a roundhouse kick, and finally either a side kick, or if the button is mashed, a flurry attack with the whip-sword. This is Byleth's fastest attack, though the first hit has limited range. Holding the attack button causes Byleth to repeat the first hit, albeit rather slowly.
|ftiltname=&nbsp;
|ftiltdmg=11%
|ftiltdesc=An elegant outward slash done at a downward angle. A decent spacing tool due to its range, with decent power as well.
|utiltname=&nbsp;
|utiltdmg=10%
|utiltdesc=Swings his sword in an upward arc over his head, akin to {{SSBU|Mii Swordfighter}}'s up tilt. An effective juggling tool.
|dtiltname=&nbsp;
|dtiltdmg=8%
|dtiltdesc=A low swipe with his whip-sword. Has very good horizontal range, and despite its slow startup for a tilt attack, the move is one of Byleth's best combo starters, with follow-ups such as up tilt, neutral aerial, up aerial or Sword of the Creator, depending on the opponent's percent.
|dashname=
|dashdmg=13% (blade), 9% (hilt)
|dashdesc=An inward swipe while sliding forward. A quick and useful burst option for punishing landings, though it has a noticeable amount of ending lag. The move has a sourspot up close, unlike other sword attacks. The sweetspot (located near the tip) boasts respectably good horizontal KO power.
|fsmashangles=3
|fsmashname=&nbsp;
|fsmashupdmg={{ChargedSmashDmgSSBU|19.5}} (tip), {{ChargedSmashDmgSSBU|13}} (shaft)
|fsmashsidedmg={{ChargedSmashDmgSSBU|18}} (tip), {{ChargedSmashDmgSSBU|12}} (shaft)
|fsmashdowndmg= {{ChargedSmashDmgSSBU|17.25}} (tip), {{ChargedSmashDmgSSBU|11.5}} (shaft)
|fsmashdesc=Thrusts Areadbhar forward. The sweetspot is located on the tip of Areadbhar, and is extremely powerful. It is fairly slow for a forward smash, however, and has a fairly weak sourspot covering the shaft of the lance. Can be angled, with the upward-angled variant being stronger, and the downward-angled variant being weaker in exchange for being able to more reliably hit shorter, crouching, prone or ledge-hanging opponents. Byleth may occasionally say "Areadbhar!" while using this move.
|usmashname=
|usmashdmg={{ChargedSmashDmgSSBU|2}} (hits 1-3), {{ChargedSmashDmgSSBU|10}} (hit 4), {{ChargedSmashDmgSSBU|16}} (total)
|usmashdesc=Swings his whip-sword above himself, hitting multiple times, akin to {{SSBU|Zero Suit Samus}}. This is Byleth's fastest smash attack, and is useful for juggling opponents and covering landings. It is also decently strong for an up smash of its kind as well.
|dsmashname=&nbsp;
|dsmashdmg={{ChargedSmashDmgSSBU|23}}
|dsmashdesc=Sweeps Aymr from front to back. Both hits are equally powerful, and deal extremely high damage and knockback for a down smash, being among the strongest in the game. Deals extremely high shield damage, with a fully-charged down smash able to break a full shield with one hit. However, it is extremely slow compared to other down smashes. Byleth may occasionally say "Aymr!" while using this move.
|nairname=
|nairdmg={{ShortHopDmgSSBU|2.5}} (hits 1-3),  {{ShortHopDmgSSBU|3}} (hit 4), {{ShortHopDmgSSBU|10.5}} (total), 1% (landing)
|nairdesc=Spins Failnaught around himself, hitting multiple times. Byleth's fastest aerial attack. It is useful for edgeguarding and approaching, has some combo potential, and it also possesses a landing hitbox, making it a useful multi-purpose aerial attack. Byleth may occasionally say "Failnaught!" while using this move.
|fairname=&nbsp;
|fairdmg= {{ShortHopDmgSSBU|12.75}} (tip), {{ShortHopDmgSSBU|8.5}} (shaft)
|fairdesc=Swings Areadbhar horizontally forward. A decent spacing tool that is fairly safe if spaced at the tip and fast-fallen. The tip has decent horizontal knockback, whereas the shaft is overall weak in comparison. Has the lowest ending lag and landing lag of Byleth's aerial attacks, and is the only one that can autocancel in a short hop.
|bairname=
|bairdmg={{ShortHopDmgSSBU|15}} (tip), {{ShortHopDmgSSBU|10}} (shaft)
|bairdesc=Thrusts Areadbhar backward. Similar to forward aerial in terms of utility, but it exchanges speed for additional power. One of Byleth's best horizontal KOing options if tippered.
|uairname=&nbsp;
|uairdmg={{ShortHopDmgSSBU|3}} (hits 1-2), {{ShortHopDmgSSBU|5.5}} (hit 3), {{ShortHopDmgSSBU|11.5}} (total)
|uairdesc=Swings his whip-sword upward, hitting multiple times. A decent tool for juggling thanks to its long duration and excellently disjointed vertical range. Has excellent vertical KO power.
|dairname=
|dairdmg={{ShortHopDmgSSBU|19}}
|dairdesc=Swings Aymr downward, with the ability to [[meteor smash]] opponents. Deals heavy damage to shields and has long range. It is also one of the strongest meteor smashes in ''Ultimate'', with the sweetspot KOing grounded opponents starting at 85%. However, it is extremely slow to start, has a lot of ending lag, only autocancels from a double jump, and its landing lag is among the highest out of any conventional down aerial in the entire game.
|grabname=&nbsp;
|grabdesc=Reaches out with his left hand.
|pummelname=&nbsp;
|pummeldmg=1.5%
|pummeldesc=Knees the opponent.
|fthrowname=&nbsp;
|fthrowdmg=3% (hit 1), 3% (throw)
|fthrowdesc=An upward slash with the sword in its whip form.
|bthrowname=&nbsp;
|bthrowdmg=7% (throw), 5% (collateral)
|bthrowdesc=Wraps the Sword of the Creator around his opponent and swings them around twice, throwing them behind on the second spin.
|uthrowname=&nbsp;
|uthrowdmg=6% (hit 1) 3% (throw)
|uthrowdesc=Shoves the opponent upward with his sword.
|dthrowname=&nbsp;
|dthrowdmg=3% (hit 1), 2% (throw)
|dthrowdesc=A downward slash with the sword in its whip form. It sends opponents directly in front of Byleth, allowing it to start combos at 0%, usually into forward tilt.
|floorfname=&nbsp;
|floorfdmg=7%
|floorfdesc=Slashes behind and then in front of himself.
|floorbname=&nbsp;
|floorbdmg=7%
|floorbdesc=Same as his front floor attack.
|floortname=&nbsp;
|floortdmg=5%
|floortdesc=Slashes in front and then behind himself.
|edgename=&nbsp;
|edgedmg=9%
|edgedesc=Performs a low outward slash while climbing up.
|nsname=Failnaught
|nsdmg=12% (normal), 29% (fully charged)
|nsdesc=Byleth pulls out the Hero's Relic Failnaught to fire an arrow. He can charge it for more speed and damage, change directions while charging, and can [[charge-cancel]] with shield until a certain duration. Charging at its maximum duration will fire a powerful arrow that has a similar animation and range to the [[staff]] item. A fully charged arrow can nearly break full shields. It must be charged a bit before it can be fired, similarly to how [[Bullet Climax]] cannot be shield-canceled instantaneously and must charge first. Byleth may occasionally say "Failnaught!" while using this move. The fully charged version pushes Byleth back and up when used in the air.
|ssname=Areadbhar
|ssdmg=17.25% (ground tip), 11.5% (ground shaft), 14.25% (aerial tip), 9.5% (aerial shaft)
|ssdesc=Byleth lunges forward while swinging the Hero's Relic Areadbhar upward with impressive horizontal and vertical range. If the move is smash-inputted, Byleth lunges forward farther, further improving its range. The aerial version has him spin it in an arc around him, covering an area that his aerial attacks cannot, but at expense of lag. Areadbhar possesses a [[sweetspot]] on its blade, as opposed to the weaker shaft. Byleth may occasionally say "Areadbhar!" while using this move.
|usname=Sword of the Creator
|usdmg=1% (hit 1), 3% (grab), 9.4% (bounce)
|usdesc=Byleth whips the Sword of the Creator upward, acting as a [[tether recovery]] very similar to Joker's [[Grappling Hook]] in function. It can also attach to walls and allow Byleth to jump off, up to three times consecutively without landing. If it connects with an opponent, Byleth latches onto the opponent before footstooling them. If the opponent's percentage is at least 50%, this footstool will [[Tech|untechably]] [[meteor smash]]. The move can not only grab aerial opponents, but also grounded ones as well.
|dsname=Aymr
|dsdmg=36% (ground hit), 8% (shockwave), 25% (aerial hit)
|dsdesc=Byleth channels all of his energy into a sluggish, but colossally powerful slash using the Hero's Relic Aymr. It has [[super armor]] during startup, can be reversed, and Byleth can drop through platforms while performing it. Like other "bold" moves (such as [[Falcon Punch]], [[Warlock Punch]], and [[Hatchet Man]]), it triggers [[Special Zoom]]. When successfully executed, Aymr can break shields in a single hit. When it is used successfully while falling off the battlefield, by an edge, and it hits the battlefield, Byleth will be suspended, ending the fall. Byleth may occasionally yell "Aymr!" while using this move. When used in the air, Byleth is stalled slightly just before the hitbox comes out.
|fsname=Progenitor God Ruptured Heaven
|fsdmg=10% (initial hit), 20% (strike), 15% (end), 45% (total)   
|fsdesc= Byleth lashes out with the Sword of the Creator, exclaiming "I'll finish with this!". The lash itself has decent range and can trap up to three opponents at once. Upon a hit, he and Sothis combine their power to perform Byleth's signature Combat Art Ruptured Heaven, with Sothis saying "Your will and mine are now as one!", as Byleth extends the Sword of the Creator to unleash an earth-rending twister. As the targets are struck by the shockwave, Sothis says "The end approaches!" before they are launched diagonally upwards with respectable power.
}}

===[[On-screen appearance]]===
*Warps onto the stage using warp magic, poses while holding a pointer, then pulls out his sword.

===[[Taunts]]===
* '''Up taunt''': Swings the Sword of the Creator to his right leg, and puts his left fist to his chest while looking into the sky. Female Byleth has an altered stance, with one foot in front of the other, and with the Sword of the Creator held behind her in a reversed grip. Based off of Byleth's victory pose with a sword equipped.
* '''Side taunt''': Brandishes the Sword of the Creator forward and says either "Let the lesson begin!" or "Stay focused." The former quote is from Byleth's critical hit quote, while the latter is from when Byleth is selected on the battlefield.
* '''Down taunt''': Swings the whip-sword around himself and says, "Try me."
<gallery>
SSBUBylethTaunt1.gif|Male Byleth's up taunt.
<!--SSBUFemaleBylethTaunt1.gif|Female Byleth's up taunt-->
SSBUBylethTaunt2.gif|Byleth's side taunt.
SSBUBylethTaunt3.gif|Byleth's down taunt.
</gallery>

===[[Idle poses]]===
*Twirls the Sword of the Creator into a backhanded grip while striking a pose, before returning to his original position. If using a female costume, the Sword of the Creator is instead held in a standard grip with a more energetic pose. Based off the animation when Byleth is selected on the map before moving.
<gallery>
SSBUBylethIdle1.gif|Male Byleth's idle pose.
SSBUBylethIdle2.gif|Female Byleth's idle pose.
</gallery>

===[[Victory pose]]s===
''Note: Like {{SSBU|Pokémon Trainer}} and {{SSBU|Inkling}}, Byleth's victory animations are different between the male and female variants.''
====Both====
*Plants the Sword of the Creator into the ground along with the other Hero's Relics already planted into the floor, says "Each battle a chance to grow," then swings the left arm out while facing the background, lowering said arm to the side. Combines Byleth's win quote after a battle with the game over screen, where all four main Relics are planted on the ground.
====Male====
*Swings the Sword of the Creator outward, saying "Allow me to demonstrate!" He then raises his left hand towards his chest as he looks outward. Based off of Byleth's victory pose when wielding a sword, combined with one of his critical hit quotes.
*With the Sword of the Creator in its whip form, Byleth swings it around the front of his body in a circular motion, saying "No hesitation!" After striking the ground, the sword reverts to its original form, with Byleth posing with it held in a standard grip. Uses the quote from his critical hit activation.
====Female====
*Swings the Sword of the Creator outward before holding the sword behind her in a reverse grip, saying "Allow me to demonstrate!" She then looks toward the screen as opposed to looking into the distance.
*With the Sword of the Creator in its whip form, she swings the whip in front of herself twice (each time in a different direction) while saying "No hesitation," and then holds it up towards her face in a vertical manner.
[[File:FireEmblemThreeHousesVictoryThemeUltimate.ogg|thumb|An excerpt of the main theme from ''{{s|fireemblemwiki|Fire Emblem: Three Houses}}''.]]
<gallery>
SSBUBylethVictory1.gif
SSBUBylethVictory2.gif
SSBUBylethVictory3.gif
</gallery>
<gallery>
SSBUFemaleBylethVictory1.gif
SSBUFemaleBylethVictory3.gif
SSBUFemaleBylethVictory2.gif
</gallery>
{{clr}}

=={{SSBU|Classic Mode}}: A Heroic Legacy==
[[File:SSBU Congratulations Byleth.png|thumb|Byleth's congratulations screen.]]
Byleth's Classic Mode route's theme is on ''Fire Emblem'' games, fought in order of release year. All battles are stamina battles. The player always starts with 100 HP.

{|class="wikitable sortable" style="text-align:center"
!Round!!Opponent!!Stage!!Music!!Notes
|-
|1||{{SSBU|Marth}} {{head|Marth|g=SSBU|s=20px}}||[[Temple]]||''{{SSBUMusicLink|Fire Emblem|Story 5 Meeting}}''||References how Marth used Temple as his [[home stage]] in ''[[Super Smash Bros. Melee]]'', due to it not having a ''Fire Emblem'' stage. Marth starts with 100 HP.
|-
|2||{{SSBU|Roy}} {{head|Roy|g=SSBU|s=20px}}||[[Arena Ferox]] ([[Battlefield form]])||''{{SSBUMusicLink|Fire Emblem|Winning Road - Roy's Hope}}''|| Roy starts with 100 HP.
|-
|3||{{SSBU|Ike}} (×2) {{head|Ike|g=SSBU|s=20px}} {{Head|Ike|g=SSBU|s=20px|cl=Brown}}||[[Castle Siege]]||''{{SSBUMusicLink|Fire Emblem|Eternal Bond}}''||The ''Radiant Dawn'' Ike will appear once the ''Path of Radiance'' Ike is defeated. Both Ike CPUs start with 100 HP.
|-
|4||{{SSBU|Robin}} {{head|Robin|g=SSBU|s=20px}}, {{SSBU|Lucina}} {{head|Lucina|g=SSBU|s=20px}} and {{SSBU|Chrom}} {{head|Chrom|g=SSBU|s=20px}}||[[Arena Ferox]]||''{{SSBUMusicLink|Fire Emblem|Id (Purpose) (Remix)}}''||Team battle. Robin, Lucina, and Chrom start with 50 HP.
|-
|5||{{SSBU|Corrin}} (×2) {{head|Corrin|g=SSBU|s=20px}}{{head|Corrin|g=SSBU|s=20px|cl=Black}}||[[Coliseum]]||''{{SSBUMusicLink|Fire Emblem|Lost in Thoughts All Alone (for 3DS / Wii U)}}''||Team battle. The two Corrins wearing white and black is likely a reference to ''Birthright'' and ''Conquest''. They start with 100 HP.
|-
|6||Byleth (×3) {{Head|Byleth|g=SSBU|s=20px|cl=Red}} {{head|Byleth|g=SSBU|s=20px|cl=Blue}} {{head|Byleth|g=SSBU|s=20px|cl=Yellow}} ||[[Garreg Mach Monastery]]||''{{SSBUMusicLink|Fire Emblem|Fódlan Winds}}''||Represent the house leaders in ''Fire Emblem: Three Houses''. The red Byleth prefers down specials, the blue one prefers side specials, and the yellow one prefers neutral specials, referencing the weapons of Edelgard, Dimitri, and Claude respectively. The costumes will still be worn even when playing with one of them. They start with 100 HP.
|-
|colspan="5"|Bonus Stage
|-
|Final||{{SSBU|Master Hand}} and {{SSBU|Crazy Hand}}||{{SSBU|Final Destination}}||''{{SSBUMusicLink|Fire Emblem|Code Name: F.E.}}''||The player has Marth {{head|Marth|g=SSBU|s=20px|}}, Roy {{head|Roy|g=SSBU|s=20px|}}, Ike {{head|Ike|g=SSBU|s=20px|}}, Robin {{head|Robin|g=SSBU|s=20px|}} and Corrin {{head|Corrin|g=SSBU|s=20px|}} as CPU allies with 30 HP.
|}

[[Credits]] roll after completing Classic Mode. Completing it as Byleth has ''{{SSBUMusicLink|Fire Emblem|Paths That Will Never Cross}}'' accompany the credits.
{{clr}}

==Role in [[World of Light]]==
[[File:WoL-75Byleth.jpg|thumb|The message that shows Byleth's availability in World of Light|left]]
Due to their status as downloadable content, Byleth does not have a legitimate role in World of Light. Instead, they are unlocked for use in the mode after freeing 10 fighters from [[Galeem]]'s control. If loading an existing save file that meets this condition before downloading Byleth, they are immediately unlocked.
{{clrl}}

==[[Spirit]]s==
Byleth's Fighter Spirits can be obtained by completing [[Classic Mode]].  They are also available periodically for purchase in the shop for 300 coins, but only after Byleth has been downloaded. Unlocking Byleth in World of Light allows the player to preview the first spirit below in the Spirit List under the name "???".  As Fighter Spirits, they cannot be used in Spirit Battles and are purely aesthetic.  Each Fighter Spirit has an alternate version that replaces it with its artwork in Ultimate.

<center>
<gallery>
Byleth_M.png|616. '''''Byleth (Male)'''''
Byleth F.png|617. '''Byleth (Female)''' 
</gallery>
</center>

==In Spirit battles==
===As the main opponent===
{|class="wikitable sortable" style="width:100%;"
|-
! colspan=4|Spirit
! colspan=7|Battle parameters
|-
! style="width:5%;"|No.
! style="width:5%;"|Image
! Name
! Series
! Enemy Fighter(s)
! style="width:5%;"|Type
! style="width:5%;"|Power
! Stage
! Rules
! Conditions
! Music
|-
|-
|1,382
|[[File:Edelgard.png|center|64x64px]]
|{{s|fireemblemwiki|Edelgard}}
|''Fire Emblem series''
|•{{SSBU|Byleth}} {{Head|Byleth|g=SSBU|s=20px|cl=Red}}
|[[File:SpiritTypeAttack.png|20px|center|Attack]]
|5,000
|[[Castle Siege]] ([[Battlefield form]])
|•Hazard: Lava Floor
|•The floor is lava<br>•The enemy has super armor and is hard to launch of make flinch
|{{SSBUMusicLink|Fire Emblem|The Apex of The World}}
|-
|1,384
|[[File:DimitriFE.png|center|64x64px]]
|{{s|fireemblemwiki|Dimitri}} (Fire Emblem)
|''Fire Emblem series''
|•{{SSBU|Byleth}} {{Head|Byleth|g=SSBU|s=20px|cl=Blue}}<br>•{{SSBU|Ganondorf}} {{Head|Ganondorf|g=SSBU|s=20px|cl=White}}
|[[File:SpiritTypeShield.png|20px|center|Shield]]
|5,000
|[[Distant Planet]] ([[Ω form]])
|N/A
|•Stamina Battle<br>•The enemy has increased attack power
|{{SSBUMusicLink|Fire Emblem|Between Heaven and Earth}}
|-
|1,386
|[[File:Claude.png|center|64x64px]]
|{{s|fireemblemwiki|Claude}}
|''Fire Emblem series''
|•{{SSBU|Byleth}} {{Head|Byleth|g=SSBU|s=20px|cl=Yellow}}
|[[File:SpiritTypeGrab.png|20px|center|Grab]]
|5,000
|[[Gaur Plain]] ([[Ω form]])
|•Hazard: Left is Right, Right is Left<br>•Hazard: Poison Floor
|•The floor is poisonous<br>•Left and right controls suddenly reverse
|{{SSBUMusicLink|Fire Emblem|Blue Skies and a Battle}}
|-
|1,388
|[[File:FETH Sothis.png|center|64x64px]]
|[[Sothis]]
|''Fire Emblem series''
|•{{SSBU|Byleth}} {{Head|Byleth|g=SSBU|s=20px|cl=Green}}
|[[File:SpiritTypeGrab.png|20px|center|Grab]]
|13,400
|[[Spear Pillar]] ([[Ω form]])
|•Rule: Health Recovery<br>•Rule: Sudden Final Smash
|•The enemy will suddenly have a Final Smash<br>•The enemy is healed significantly when the enemy's at high damage
|{{SSBUMusicLink|Fire Emblem|Fire Emblem: Three Houses Main Theme}}
|}

===As a minion===
{|class="wikitable sortable" style="width:100%;"
|-
! colspan=4|Spirit
! colspan=7|Battle parameters
! colspan=1|Inspiration
|-
! style="width:5%;"|No.
! style="width:5%;"|Image
! Name
! Series
! Enemy Fighter(s)
! style="width:5%;"|Type
! style="width:5%;"|Power
! Stage
! Rules
! Conditions
! Music
! Character
|-
|1,393
|[[File:Hilda(FE).png|center|64x64px]]
|{{s|fireemblemwiki|Hilda}} (Fire Emblem)
|''Fire Emblem series''
|•{{SSBU|Villager}} {{Head|Villager|g=SSBU|s=20px|cl=Pink}}<br>•{{SSBU|Byleth}} {{Head|Byleth|g=SSBU|s=20px|cl=Yellow}}
|[[File:SpiritTypeGrab.png|20px|center|Grab]]
|2,400
|[[Garreg Mach Monastery]] (Bridge)
|•Rule: Attack Power ↑
|•The enemy gets a major stat boost when badly damaged.
|{{SSBUMusicLink|Fire Emblem|Paths That Will Never Cross}}
|{{s|fireemblemwiki|Claude}}
|}

==[[Alternate costume (SSBU)#Byleth|Alternate costumes]]==
{|style="margin:1em auto 1em auto;text-align:center"
|-
|colspan=8|[[File:Byleth Palette (SSBU).png|link=Alternate costume (SSBU)#Byleth|1000px]]
|-
|{{Head|Byleth|g=SSBU|s=50px}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Female}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Blue}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Red}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Yellow}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Green}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Black}}
|{{Head|Byleth|g=SSBU|s=50px|cl=Grey}}
|}

==[[List of Super Smash Bros. Ultimate character trailers#Byleth|Reveal trailer]]==
{{#widget:YouTube|id=6fwAk1P8TLU}}

==Gallery==
<gallery>
Byleth Joins Smash House.png|Male Byleth's splash art.
Byleth Recruits Byleth.png|Female Byleth's splash art.
SSBU - Byleth Weapons.png|Byleth's weapons.
SSBUWebsiteByleth1.jpg|Both male and female Byleth on [[Umbra Clock Tower]].
SSBUWebsiteByleth2.jpg|Female Byleth using her [[back aerial]] on [[Garreg Mach Monastery]].
SSBUWebsiteByleth3.jpg|Male and female Byleth crossing swords on Garreg Mach Monastery.
SSBUWebsiteByleth4.jpg|Byleth's costumes based on Dimitri, Edelgard, and Claude.
SSBUWebsiteByleth5.jpg|Female Byleth using [[Aymr]] against {{SSBU|Zelda}}'s [[Phantom Slash|Phantom]].
SSBUWebsiteByleth6.jpg|Male Byleth using [[Failnaught]] on Garreg Mach Monastery.
</gallery>

==Trivia==
<!--Do not add in anything about Byleth's trailer being the most disliked. We didn't do any of that for previous games so there's no reason to do it here.-->
*Byleth's internal codename is "master", referencing his role as a professor. 
*Byleth is the only character in Volume 1 of the Fighters Pass to not be from either a third-party company or a new universe, and is the second such DLC character for ''Super Smash Bros. Ultimate'', after {{SSBU|Piranha Plant}}.
*Byleth, like {{SSBU|Ike}}, {{SSBU|Pokémon Trainer}}, {{SSBU|Wii Fit Trainer}}, and {{SSBU|Inkling}}, is one of the few characters to have {{SSBU|alternate costume}}s with different animations. 
**Female Byleth holds the Sword of the Creator with its tip pointed upwards, while male Byleth holds it with its tip pointed downwards. All animations that can be played from their stand animations (like their idle animations) are subsequently affected through the animation blending. 
**Their [[victory pose]]s are different. Byleth is also the only fighter where the camera angles will also change depending on the costume, rather than just the animations. 
*With his debut in ''Three Houses'' in July 2019, Byleth is currently the most recent fighter to appear in ''Ultimate'' and, by extension, the entire ''Super Smash Bros.'' series. He is also the first character in the game to make his gaming debut after ''Ultimate''{{'}}s original release in December 2018, which was also the case with fellow ''Fire Emblem'' characters [[Roy]] and [[Corrin]] in their debuts.
**Correspondingly, Byleth is currently the only fighter in ''Ultimate'' to have debuted on the [[Nintendo Switch]].
*Byleth is the fifth fighter to receive an [[Smash invitation|invitation letter]] in their reveal trailer, after {{SSB4|Villager}}, {{SSBU|Isabelle}}, {{SSBU|Joker}}, and {{SSBU|Terry}}.
*Byleth is the only character whose alternate costume is displayed alongside thier default costume on the [[Super Smash Bros. Ultimate Official Site|official ''Ultimate'' site]], and is one of two characters in general to have this trait, with {{SSB4|Robin}}'s page on the [[Super Smash Bros. 4 Official Site|official ''SSB4'' site]] similarly showing both genders, unlike other characters with alternate costumes.
**Additionally, because male and female Byleth have different names in Japanese, Korean, and Chinese, the lists of fighters on the website names both of them in those languages. 
*According to Sakurai's presentation, Byleth's development was worked in secret; even most of Nintendo worldwide did not know about this inclusion. Only the development team and other stakeholders knew.
*Byleth is the only DLC fighter in ''Ultimate'' not to have been revealed before their presentation video's release. While none of {{SSBU|Joker}}'s contents were revealed before his video's release, the character himself was confirmed four months prior at The Game Awards 2018.
*Byleth, {{SSBU|Terry}}, {{SSBU|Hero}} and {{SSBU|Ryu}} are the only characters who have stamina battles for their Classic Mode routes.
*If excluding Kazooie, the female variant of Byleth is the first female DLC character in ''Ultimate''.
**Additionally, Byleth is the second DLC character to have a male and female variant, following {{SSB4|Corrin}} in ''SSB4''.
*Byleth and {{SSBU|Hero}} are the only Fighters Pass characters whose pages were available on the ''Super Smash Bros. Ultimate'' website the same day they were announced.
*Byleth and {{SSBU|Ivysaur}} are the only characters in ''Ultimate'' to have an exclusively [[tether]]-based up special, as {{SSBU|Joker}} gains [[Wings of Rebellion]] through Arsene.
**His tether is also the first one in ''Ultimate'' that can grab opponents while the user is airborne.
**His tether is also the first since ''Melee'' to be able to grab walls.
*Byleth is one of two female characters with moves that have [[super armor]], along with [[Bowser Jr. (SSBU)|Wendy]].
**Coincidentally, they are both alternate costumes.
*For unknown reasons, the Korean reveal of Byleth had been delayed, being revealed on January 22, 2020, rather than January 16 like in other regions.
*When Byleth is [[Star KO]]'d, he shouts, "My battle ends here...!" This is a reference to a line of dialogue when he exhausts his health in ''Fire Emblem: Three Houses''. He shares the distinction of speaking a full sentence during a Star KO with {{SSBU|Pit}}.
**As of Byleth's release, [[Pit]] and Byleth are the only characters to say anything for their Star KOs.
**Both, additionally, do not say a sentence in Japanese.
*When KO'd by reaching 0 HP in [[Stamina Mode]], Byleth uses his heavy knockback scream rather than his standard KO scream. This also applies to {{SSBU|Mario}}, {{SSBU|Dr. Mario}}, {{SSBU|Hero}} and {{SSBU|Terry}}.
*Byleth is so far the only DLC character to appear in multiple [[spirit]] battles. {{SSBU|Joker}}, {{SSBU|Hero}}, and {{SSBU|Banjo & Kazooie}} only appear in one, but the latter two only appear as minions, while {{SSBU|Piranha Plant}} and {{SSBU|Terry}} don't appear in any.
**Additionally, neither gender of Byleth appear in their default costume in these spirit battles, making them so far the only DLC character with this distinction.
{{SSBUCharacters}}
{{Fire Emblem universe}}
[[Category:Byleth (SSBU)| ]]
[[Category:Downloadable content]]
[[es:Byleth (SSBU)]]
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