Greninja (SSB4)/Up smash
Two reverse gripped outward arcing slashes while wielding two katanas made of water. The move consists of two hits: a double stab upwards followed by an outward rip. Its sweetspot is the initial upward stab, which chains directly into the second hit. It has very high power, KOing at around 98% and is Greninja's strongest finisher, despite being nerfed. The outward slashes are easier to connect from the side with due to their range but are much weaker, KOing at 125% at the edge. The sweetspot is useful for aerial protection or covering ledge jump options, and the outward rip can be used in the same fashion as a down smash.