Glissa Sunslayer is a rare Legendary Creature — Phyrexian Zombie Elf card from Phyrexia: All Will Be One Promos (PONE), collector number 202p. Current market price: $2.51 (foil $2.87), TCGplayer market prices via Scryfall.
First strike, deathtouch Whenever Glissa Sunslayer deals combat damage to a player, choose one — • You draw a card and lose 1 life. • Destroy target enchantment. • Remove up to three counters from target permanent.