Vanille, Cheerful l'Cie is a uncommon Legendary Creature — Human Cleric card from Final Fantasy (FIN), collector number 211. Current market price: $0.15 (foil $0.30), TCGplayer market prices via Scryfall.
When Vanille enters, mill two cards, then return a permanent card from your graveyard to your hand. At the beginning of your first main phase, if you both own and control Vanille and a creature named Fang, Fearless l'Cie, you may pay {3}{B}{G}. If you do, exile them, then meld them into Ragnarok, Divine Deliverance.