Phyrexian Obliterator is a mythic Creature — Phyrexian Horror card from Phyrexia: All Will Be One (ONE), collector number 308. Current market price: $11.42 (foil $13.07), TCGplayer market prices via Scryfall.
Trample Whenever a source deals damage to this creature, that source's controller sacrifices that many permanents of their choice.