Color Change

Effect:

Whenever this Pokémon takes damage from a move (multistrike move will activate after all hits), the Pokémon's type changes to match the move. If the Pokémon has two types, both are overridden. The Pokémon must directly take damage; for example, moves blocked by a substitute will not trigger this ability, nor will moves that deal damage indirectly, such as spikes. This ability takes effect on only the last hit of a multiple-hit attack.

Color Change is introduced in Gen 3: