Aipom

In Astra, Aipom has a Fighting-type regional form. It evolves into Astrian Ambipom when exposed to an Astrim Berry - a special item purchased from the Emblem Trainer atop the Guardian Tree (/warp guardiantree).

It is the only Pokémon known to enjoy the bitter taste of Astrim Berries. But to obtain them, it must overcome a great challenge. Few Aipom are able to climb the great Guardian Tree to claim their prize.