Crimson Muckwader is a uncommon Creature — Lizard card from Magic 2013 (M13), collector number 127. Current market price: $0.13 (foil $0.50), TCGplayer market prices via Scryfall.
This creature gets +1/+1 as long as you control a Swamp. {2}{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)