Plus
9 Pokémon can have Plus: 5 as a regular Ability and 4 as a Hidden Ability.
What does Plus do?
This Pokémon has 1.5× its Special Attack if any friendly Pokémon has Plus or Minus. This bonus does not count as a stat modifier. If either ability is disabled by Gastro Acid, both lose their effect.
Which Pokémon have Plus? (5)
Which Pokémon have Plus as a Hidden Ability? (4)
How Abilities work · Hidden Abilities explained · Every Ability