Phenax, God of Deception is a mythic Legendary Enchantment Creature — God card from The List (PLST), collector number BNG-152. Current market price: $17.17, TCGplayer market prices via Scryfall.
Indestructible As long as your devotion to blue and black is less than seven, Phenax isn't a creature. Creatures you control have "{T}: Target player mills X cards, where X is this creature's toughness."