Wall of Limbs is a uncommon Creature — Zombie Wall card from Magic 2015 (M15), collector number 121. Current market price: $0.25 (foil $0.80), TCGplayer market prices via Scryfall.
Defender (This creature can't attack.) Whenever you gain life, put a +1/+1 counter on this creature. {5}{B}{B}, Sacrifice this creature: Target player loses X life, where X is this creature's power.