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Ok, but why can't I use it in the Format "National Dex AG" (Gen 9)? I think / thought that I can use attacks from other Gens / Games before, too.
Or do I have to use an other format for it?
https://www.serebii.net/pokedex-swsh/basculegion/ Aqua Tail is listed under "Move Shop Attacks"
https://bulbapedia.bulbagarden.net/wiki/Aqua_Tail_(move) Was by move tutor, not breeding, sorry my mistake, but it is possible
Hello,
Why can't Basculegion use aqua tail in showdown?
I tried several formats in gen IX
Serebi & Bulbapedia states, that it can learn the attack (through breeding according to bulbapedia)