Plus
Boosts the Sp. Atk stat of the Pokémon if an ally with the Plus or Minus Ability is also in battle.
Pokémon with this ability6 Pokémon
FAQ
What does Plus do?
Boosts the Sp. Atk stat of the Pokémon if an ally with the Plus or Minus Ability is also in battle.
Which Pokémon have Plus?
6 Pokémon have it, e.g. Mareep, Flaaffy, Ampharos, Plusle, Dedenne, Toxtricity.