Minus
8 Pokémon and forms can have Minus: 6 as a regular Ability and 2 as a Hidden Ability.
What does Minus 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 Minus? (6)
Which Pokémon have Minus as a Hidden Ability? (2)
How Abilities work · Hidden Abilities explained · Every Ability