Generation Viii
Steam Engine
Boosts the Pokémon’s Speed stat drastically if hit by a Fire- or Water-type move.
Detailed Effect
Raises the user's Speed by three stages when it is hit by a Fire- or Water-type attack. The attack still deals damage.
Pokémon With Steam Engine
4 canonical Pokémon forms can have this Ability.

Rolycoly
Carkol
Coalossal
Coalossal Gmax