This is a seven-mana Black 7/7 slug that helps you wipe out enemies by putting a slime counter on each creature you don't control at the end of your end step, and then giving those creatures -1/-1 for each of those counters on them
But the great part is that even if you do strike out and discard 3 non-items, youre thinning the deck to find the other important cards that youll need later on, such as gust supporters, Raihan, or Klara
Of these, the art is either done by Ken Sugimori, Mitsuhiro Arita, Keiji Kinebuchi, or Tomoaki Imakuni
Removing a game-ending threat for one mana represents incredible value even when opponents gain 10+ life, since dead players gain no life at all
These cards allow a player to recover cards from the discard pile, draw them, or even look through their decks for specific cards that the Trainer Card allows