Noosegraf Mob is a rare Creature — Zombie card from Eldritch Moon (EMN), collector number 98. Current market price: $0.27 (foil $0.85), TCGplayer market prices via Scryfall.
This creature enters with five +1/+1 counters on it. Whenever a player casts a spell, remove a +1/+1 counter from this creature. If you do, create a 2/2 black Zombie creature token.