Deceiver Exarch is a uncommon Creature — Phyrexian Cleric card from The List (PLST), collector number NPH-33. Current market price: $0.17, TCGplayer market prices via Scryfall.
Flash (You may cast this spell any time you could cast an instant.) When this creature enters, choose one — • Untap target permanent you control. • Tap target permanent an opponent controls.