Armor Tailin Pokémon Polished Crystal

Armor Tail is the an ability of Farigiraf that blocks opposing Pokémon from using moves with increased priority against the user! Moves with negative priority, such as Roar boosted by Prankster, are not blocked. Again, you will only be able to find this ability on Farigiraf in Polished Crystal, which only has it as its secondary ability.