To provide an example of how easy Quaquaval can pick up KOs, I present this game:
https://replay.pokemonshowdown.com/gen9fortemons-2114294244
After turn 2 ended, my opponent could do absolutely nothing. Every single one of their Pokemon got KOed by Aqua Step + Close Combat.
They could have tried using Landorus-Therian, but -1 252+ Atk Quaquaval Aqua Step vs. 0 HP / 4 Def Landorus-Therian: 198-234 (62 - 73.3%) -- guaranteed 2HKO.
There is no offensive Pokemon that can defeat Quaquaval once it picks up a KO.
Remember that Quaquaval can run Brave Bird, too.
https://replay.pokemonshowdown.com/gen9fortemons-2114294244
After turn 2 ended, my opponent could do absolutely nothing. Every single one of their Pokemon got KOed by Aqua Step + Close Combat.
They could have tried using Landorus-Therian, but -1 252+ Atk Quaquaval Aqua Step vs. 0 HP / 4 Def Landorus-Therian: 198-234 (62 - 73.3%) -- guaranteed 2HKO.
There is no offensive Pokemon that can defeat Quaquaval once it picks up a KO.
Remember that Quaquaval can run Brave Bird, too.
