Steadfast (ability)

Effect

Raises Speed each time the Pokémon flinches.

Game descriptions

Diamond​/​Pearl
Platinum
HeartGold​/​SoulSilver
Raises Speed each time the Pokémon flinches.
Black​/​White
Black 2​/​White 2
Raises Speed each time the Pokémon flinches.
X​/​Y
O.Ruby​/​A.Sapphire
Boosts the Speed stat each time the Pokémon flinches.
Sun​/​Moon
Ultra Sun​/​Ultra Moon
The Pokémon’s determination boosts the Speed stat each time the Pokémon flinches.

Pokémon with Steadfast

#
Name
2nd ability
Hidden ability
150 Mewtwo
Mega Mewtwo X
236 Tyrogue Guts Vital Spirit
447 Riolu Inner Focus Prankster
448 Lucario Inner Focus Justified
475 Gallade Justified

Steadfast as a hidden ability