Queen Marchesa is a rare Legendary Creature — Human Assassin card from Commander Masters (CMM), collector number 350. Current market price: $1.51 (foil $3.27), TCGplayer market prices via Scryfall.
Deathtouch, haste When Queen Marchesa enters, you become the monarch. At the beginning of your upkeep, if an opponent is the monarch, create a 1/1 black Assassin creature token with deathtouch and haste.