Skarrgan Pit-Skulk is a common Creature — Human Warrior card from RNA Guild Kit (GK2), collector number 84. Current market price: $0.20, TCGplayer market prices via Scryfall.
Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.) Creatures with power less than this creature's power can't block it.