Steadfast Ability: Effect & Pokémon With Steadfast Name Steadfast Name(DE) Felsenfest Name(FR) Impassible Name(JA) ふくつのこころ (Fukutsu no Kokoro) Description Speed is boosted one stage when flinched. Pokemon with Steadfast MachopMachokeMachampScytherMega Mewtwo XTyrogueHitmontopRioluLucarioGallade