Steadfast

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.
Sword
Shield
B.Diamond
S.Pearl
The Pokémon’s determination boosts the Speed stat each time the Pokémon flinches.

Other languages

EnglishSteadfast
SpanishImpasible
ItalianCuordeciso
Japaneseふくつのこころ (Fukutsu no Kokoro)
GermanFelsenfest
FrenchImpassible