✨ Steam Engine | Gen 9
Effect:
Boosts the Pokémon's Speed stat by 6 stages when hit by a Fire or Water-type move.
Effect Outside Battle:
If any Pokémon in the party has this ability, each egg in the party has its hatch counter decreased by 2 (rather than 1) each step cycle, making eggs hatch roughly twice as quickly. This effect does not stack.