Grixis Charm is a uncommon Instant card from Duel Decks: Ajani vs. Nicol Bolas (DDH), collector number 63. Current market price: $0.28, TCGplayer market prices via Scryfall.
Choose one — • Return target permanent to its owner's hand. • Target creature gets -4/-4 until end of turn. • Creatures you control get +2/+0 until end of turn.