>>37661016>Pikachu still knows Iron tail doesn't it?Yes, but Ash's Pokemon only use Z-Crystals for their types once they get them.
Normalium Z - Only used once for each of his Pokemon, never used again after he got the Electrium/Pikashunium Z, Grassium Z, and Rockium/Lycanium Z
Rockium Z - Used twice and then replaced by the Lycanium Z
Pikachu MIGHT use the Steelium Z once, but it's otherwise completely worthless for him because he has an Electrium Z that transforms into one of his species-specific Z-Crystals