Unruly Krasis is a rare Creature — Shark Octopus Lizard card from Ravnica: Clue Edition (CLU), collector number 50. Current market price: $0.38, TCGplayer market prices via Scryfall.
Trample Whenever this creature attacks, you may have the base power and toughness of another target creature you control become X/X until end of turn, where X is this creature's power. {3}{G}{U}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)