Maze's Mantle is a common Enchantment — Aura card from Phyrexia: All Will Be One (ONE), collector number 174. Current market price: $0.18 (foil $0.19), TCGplayer market prices via Scryfall.
Flash Enchant creature When this Aura enters, if enchanted creature has toxic, that creature gains hexproof until end of turn. Enchanted creature gets +2/+2.