Xathrid Gorgon is a rare Creature — Gorgon card from Magic 2013 Promos (PM13), collector number 118★. Current market price: — (foil $0.38), TCGplayer market prices via Scryfall.
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) {2}{B}, {T}: Put a petrification counter on target creature. It gains defender and becomes a colorless artifact in addition to its other types. Its activated abilities can't be activated. (A creature with defender can't attack.)