Offspring's Revenge is a rare Enchantment card from Ikoria: Lair of Behemoths Promos (PIKO), collector number 198p. Current market price: $0.16 (foil $0.40), TCGplayer market prices via Scryfall.
At the beginning of combat on your turn, exile target red, white, or black creature card from your graveyard. Create a token that's a copy of that card, except it's 1/1. It gains haste until your next turn.