Unforgiving One is a uncommon Creature — Spirit card from Kamigawa: Neon Dynasty (NEO), collector number 127. Current market price: $0.22 (foil $0.27), TCGplayer market prices via Scryfall.
Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of modified creatures you control. (Equipment, Auras you control, and counters are modifications.)