Phyrexian Processor is a mythic Artifact card from The Brothers' War Retro Artifacts (BRR), collector number 39. Current market price: $0.60 (foil $0.92), TCGplayer market prices via Scryfall.
As this artifact enters, pay any amount of life. {4}, {T}: Create an X/X black Phyrexian Minion creature token, where X is the life paid as this artifact entered.