Aspect of Gorgon is a common Enchantment — Aura card from Journey into Nyx (JOU), collector number 60. Current market price: $0.26 (foil $0.56), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +1/+3 and has deathtouch. (Any amount of damage it deals to a creature is enough to destroy it.)