Aya of Alexandria is a rare Legendary Creature — Human Assassin card from Assassin's Creed (ACR), collector number 140. Current market price: $1.86 (foil $1.95), TCGplayer market prices via Scryfall.
Menace, lifelink Whenever a historic creature you control deals combat damage to a player, create a 1/1 black Assassin creature token with menace. (Artifacts, legendaries, and Sagas are historic.)