Skarrgan Pit-Skulk is a common Creature — Human Warrior card from Guildpact (GPT), collector number 96. Current market price: $0.07 (foil $0.32), 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.