all showcase cards mtg Choose your ~ Ikoria: Lair of Behemoths [ NM ] [ Magic ] Magic The Gathering Trading Card

It becomes a 0/0 Elemental creature with vigilance and haste that's still a land

This particular one is a 'what if' scenario where Arthur from 1963's Sword in the Stone becomes a spellcaster in his own right

by exiling it while its still on the stack

Blue mages love transforming creatures into something else, as evidenced by Ravenform

And when it comes to labeling decks' strategies and themes, there's very often more than one commonly used term to indicate a specific deck's distinctive playstyle or win conditions - so you might see the same deck referred to by slightly different names by different players or websites