
Whimsicott is the quintessential priority support Pokémon in the Champions format. Its Grass/Fairy typing and high base speed make it naturally evasive and quick. Thanks to the Prankster ability, Whimsicott guarantees priority on crucial status moves like Tailwind, Encore, and Taunt, allowing it to dictate the pace of the battle.
Whimsicott shines when paired with mid-speed, high-damage attackers that become unstoppable under Tailwind. It also enables slower partners by locking opponents into unfavorable moves using priority Encore.
Defeating Whimsicott relies on disruption.
Incineroar can shut down its priority setup by flinching it with Fake Out or cycling stat drops with Parting Shot.
Aegislash is also a highly effective counter, as it is immune to status powder moves, resists its Fairy/Grass STABs, and hits back with Iron Head.
The best moveset for Whimsicott in the current competitive meta typically features the moves Tailwind, Moonblast, Encore, Protect.
In the Pokémon Champions meta, Whimsicott can be countered by exploiting its weaknesses (poison 4x, fire 2x, flying 2x, ice 2x, steel 2x) and using effective check/counter teams.
The best item for Whimsicott is typically Focus Sash, based on high-level tournament and ladder stats.