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Effect:

Whenever a move makes contact with this Pokémon, the move's user has a 30% chance of being burned. Overworld: 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 if multiple Pokémon have this ability or magma armor.