Stale-move negation, also known as Repetition Effect in Super Smash Bros. 4, is a gameplay element in all games in the Super Smash Bros. series. It refers to how moves cause less damage and knockback as they are used multiple times in a row. The strength of a move increases back to its regular power as other moves are used. Starting in Melee, being KO'd resets the staleness of all of that player's moves. Moves not yet affected by stale-move negation are referred to as fresh. Moves are only affected by stale-move negation if they connect with an opponent or other object that can take damage. (more...)