Glissa Sunslayer is a rare Legendary Creature — Phyrexian Zombie Elf card from Phyrexia: All Will Be One (ONE), collector number 318. Current market price: $3.22 (foil $4.55), 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.