It's a variant on the level up mechanic that uses triggered abilities instead of mana payment to level up
3 Basil - Disguised Detective 212/204, Emerald Another Uncommon to make it onto this list, Basil - Disguised Detective is holding out two different disguises, one in each hand, as he looks directly down the lens in the Enchanted version of the card
He does, in fact, take a party member out of the game with his might during that portion of combat, I'm told, and as such, his Zantetsuken ability on the card aligns well with the things the game's iteration is capable of
These transformations are represented with double-faced cards
Against other Starter Decks, it can suffer with card draw and you may find yourself top decking if youre unable to get its limited draw engine up and running
It shares similarities with Emerald, but the primary difference is that, where Emerald seeks to react and adapt to what your opponent does, Amethyst seeks to prevent your opponent from acting at all