Marsh Hulk is a common Creature — Zombie Ogre card from Dragons of Tarkir (DTK), collector number 109. Current market price: $0.10 (foil $0.42), TCGplayer market prices via Scryfall.
Megamorph {6}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)