Editing Supernova

Sephiroth swings his sword forward while saying 「{{ja|星に帰れ|Hoshi ni kaere}}」 ("Return to the Planet"), catching up to three opponents. A cutscene initiates in which he transforms into Safer Sephiroth, as the opponents face toward him with their backs to the screen, followed by summoning a meteor that passes through a planet and into a star, causing the star to explode and destroy an Earth-like planet. The trapped opponents are then inflicted with 32% damage and a random status effect as defined by the table below (no two opponents suffer the same effect):

!rowspan=2|{{rollover|Duration|Scales with the opponent's damage|y}}

!{{rollover|Offstage|N/A means an offstage opponent can't be inflicted with this effect|y}}

|[[Sleep]]||Puts the opponent to sleep.||8.67 - 22 seconds||10||5||N/A

|[[Flower]]||Inflicts the flower effect on the opponent.||6.67 - 30 seconds||10||10||10

|{{b|Mushroom|effect}}||Reverses the opponent's horizontal controls.||6.67 - 25 seconds||10||10||N/A

|[[Shield break]]||Instantly breaks the opponent's [[shield]], stunning them. Because it is a shield break, Jigglypuff is sent extremely high due to its unique shield jump, potentially KOing it via the upper blast line.||6.67 - 20 seconds||13||10||N/A

|[[Slowdown]]||Slows down the opponent.||6.67 - 25 seconds||10||10||10

|[[Knockback|Launch]]||Simply launches the opponent with more knockback than usual.||N/A||20||20||20

If more than three opponents are hit by the first slash, only the first three hit will be trapped into the move; other opponents will instead take 7% damage and moderate knockback.

==Instructional quote==

[[File:SaferSephiroth.png|thumb|200px|left|The battle against Safer∙Sephiroth from ''Final Fantasy VII''.]]

[[File:FFVII Super Nova.png|thumb|200px|Supernova as seen in the aforementioned game.]]

[https://finalfantasy.fandom.com/wiki/Safer∙Sephiroth Safer∙Sephiroth] is the form that Sephiroth takes during the third phase of the final battle in ''Final Fantasy VII''. This is the body that Sephiroth was creating for himself in the [[Northern Cave]], as part of his plan to wound the Planet with Meteor, bait the [https://finalfantasy.fandom.com/wiki/Lifestream lifestream] into emerging to heal the wound, and merge with it to become a god. Despite this being the second-to-last phase, Safer∙Sephiroth is considered the final challenge of the main story, since the fourth phase pits Cloud against a metaphysical Sephiroth in a cinematic battle that cannot be lost.

[https://finalfantasy.fandom.com/wiki/Supernova_(ability) Supernova], formatted as "Super Nova" in ''Final Fantasy VII'', is Safer∙Sephiroth's ultimate attack. The Final Smash is a heavily abridged recreation of the move from the international version of ''FFVII'', which has become infamous for its ability to draw the battle out: it has an excessively long and elaborate animation (taking a full two minutes to execute<ref>[https://www.youtube.com/watch?v=FtAu3JG9m2Q Supernova attack Final Fantasy VII]</ref>), Sephiroth can use it multiple times during a battle, and it causes the player to sit through the animation of their party's health dropping, which can take a significant amount of time when they have reached their level cap. The move involves summoning a meteor to ravage the galaxy and turn the Sun into a supernova that engulfs the Planet, dealing damage equal to 15/16 of the party's current HP and inflicting Confusion, Silence, and Slow on them. Safer∙Sephiroth additionally can deal more status elements with Pale Horse like Frog, Sadness, and Small before Super Nova starts. The original Japanese version of the move has a very different and much shorter animation (clocking in at 20 seconds<ref>[https://www.youtube.com/watch?v=89kPJy29uDc Final Fantasy VII (Japan) - Super Nova]</ref>), and the damage it deals is not proportional to the party's HP, making it possible to wipe out the party.

Sephiroth's quote when performing Supernova, 「{{ja|星に帰れ|Hoshi ni kaere}}」  ("Return to the Planet"), refers to how in ''Final Fantasy VII'', the souls of the deceased are said to return to the Lifestream, the Planet's life energy, where they rest and can alter or communicate with the Planet's physical plane.

*Using this move against {{SSBU|Mr. Game & Watch}} will show his model in 3D, as with [[The Mighty Jinjonator]], [[Triple Wolf]] and [[ARMS Rush]]. This is likely because their cinematics manipulate the Z-axis in such a way that it disregards the model flattening effect on Mr. Game & Watch.

*This is the fourth cinematic Final Smash for a DLC character in ''Ultimate'' that can catch more than one character, after [[All-Out Attack]], [[Gigaslash]] and [[Progenitor God Ruptured Heaven]].

*Supernova is one of four Final Smashes to incorporate a pre-rendered cinematic, along with [[All-Out Attack]], [[Gigaslash]] and [[House of Boom]]. Like these Final Smashes, it is rendered at 30 FPS rather than 60, possibly as a space-saving measure, and removes damage percentages for its duration.

**Consequentially, if the player enters the HOME menu and reenters, part or all of the cinematic is skipped, leaving the modeled effects out of sync.

*Like in the original ''Final Fantasy VII'', a series of mathematical equations appear in the background at the start of the move. Unlike the original, which applied equations in the field of astrophysics to determine the overall conditions needed to perform Super Nova (which infamously based the conditions around if the celestial body that would trigger the supernova was operating on a two dimensional plane, which was a flat circle, as well as ignoring that the Sun itself in astronomical terms is designated as a {{s|wikipedia|main sequence}} star, and itself is unable to go supernova due to a lack of mass), the equations depicted during the sequence instead are well-known formulas that apply to quantum mechanics, fluid dynamics, and spacetime, such as the {{s|wikipedia|Hellmann–Feynman theorem}} and [[wikipedia:Einstein field equations|the Einstein gravitational constant]].<ref>https://reddit.com/r/smashbros/comments/kffbsv/explaining_the_equations_in_sephiroths_final_smash/</ref>

{{Special Moves|char=Sephiroth}}