Hellhole Flailer is a uncommon Creature — Ogre Warrior card from Return to Ravnica (RTR), collector number 167. Current market price: $0.05 (foil $0.53), TCGplayer market prices via Scryfall.
Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.) {2}{B}{R}, Sacrifice this creature: It deals damage equal to its power to target player or planeswalker.