When it was first introduced in Generation III, along with Generation IV as well, the user of this Ability would receive a Special Attack increase by 50% when battling with a Pokémon that had the Minus Ability. Only Minun had this Ability during both generations.
This restriction was lifted as of Generation V, as the Special Attack boost now takes effect when battling alongside a Pokémon that has either Plus or Minus.
Plus doesn't have an effect in the Overworld.
Pokémon With This Ability
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