Silumgar Scavenger is a common Creature — Zombie Bird card from Double Masters (2XM), collector number 105. Current market price: $0.05 (foil $0.27), TCGplayer market prices via Scryfall.
Flying Exploit (When this creature enters, you may sacrifice a creature.) Whenever another creature you control dies, put a +1/+1 counter on this creature. It gains haste until end of turn if it exploited that creature.