Overgrow
Powers up Grass-type moves when the Pokémon's HP is low.
Pokémon with this ability28 Pokémon
FAQ
What does Overgrow do?
Powers up Grass-type moves when the Pokémon's HP is low.
Which Pokémon have Overgrow?
28 Pokémon have it, e.g. Bulbasaur, Ivysaur, Venusaur, Chikorita, Bayleef, Meganium, Treecko, Grovyle.