Petrahydrox is a common Creature — Weird card from Guildpact (GPT), collector number 148. Current market price: $0.06 (foil $0.21), TCGplayer market prices via Scryfall.
({U/R} can be paid with either {U} or {R}.) When this creature becomes the target of a spell or ability, return this creature to its owner's hand.