Serum-Core Chimera is a uncommon Creature — Phyrexian Chimera card from Phyrexia: All Will Be One (ONE), collector number 215. Current market price: $0.18 (foil $0.05), TCGplayer market prices via Scryfall.
Flying Whenever you cast a noncreature spell, put an oil counter on this creature. Remove three oil counters from this creature: Draw a card. Then you may discard a nonland card. When you discard a card this way, this creature deals 3 damage to target creature or planeswalker. Activate only as a sorcery.