Vengeful Warchief is a uncommon Creature — Orc Warrior card from Core Set 2020 (M20), collector number 121. Current market price: $0.28 (foil $0.47), TCGplayer market prices via Scryfall.
Whenever you lose life for the first time each turn, put a +1/+1 counter on this creature. (Damage causes loss of life.)