Phyrexian Revoker is a rare Artifact Creature — Phyrexian Horror card from The Brothers' War Retro Artifacts (BRR), collector number 103. Current market price: $0.36 (foil $0.90), TCGplayer market prices via Scryfall.
As this creature enters, choose a nonland card name. Activated abilities of sources with the chosen name can't be activated.