Headliner Scarlett is a rare Legendary Creature — Human Warlock card from Ravnica: Clue Edition (CLU), collector number 4. Current market price: $4.34, TCGplayer market prices via Scryfall.
Haste When Headliner Scarlett enters, creatures target player controls can't block this turn. At the beginning of your upkeep, exile the top card of your library face down. You may look at and play that card this turn.