Prankster

Prankster grants non-damaging moves an additional priority stage, allowing status moves to outspeed most attacks in battle. This ability transforms typically slow utility moves like Thunder Wave, Taunt, or Substitute into fast-acting tools that can dictate the pace of battle. The priority boost applies to all non-damaging moves, including healing moves, stat-changing moves, and field effects, making it one of the most versatile support abilities in competitive play.

The ability's impact varies significantly depending on the Pokemon wielding it. Whimsicott becomes a premier support Pokemon, using priority Tailwind to boost team speed or Encore to lock opponents into unfavorable moves. Grimmsnarl leverages Prankster to set up dual screens with Light Screen and Reflect before taking damage, while also threatening opponents with priority Thunder Wave paralysis. Tornadus and Thundurus use the ability differently, with Tornadus focusing on Tailwind support and Thundurus often running priority Thunder Wave to cripple faster threats.

One crucial limitation exists in modern generations: Prankster-boosted moves fail entirely against Dark-type Pokemon, making them immune to these priority status moves. This restriction can be exploited by switching in Dark-types to completely shut down Prankster users, creating an important counterplay dynamic in team building and battle strategy.