Grenzo's Cutthroat is a common Creature — Goblin Rogue card from Conspiracy (CNS), collector number 32. Current market price: $0.17 (foil $0.40), TCGplayer market prices via Scryfall.
First strike Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)