Theorix Charm is a uncommon Instant card from Reality Fracture (FRA), collector number 155. Current market price: $0.22 (foil $0.35), TCGplayer market prices via Scryfall.
Choose one — • Counter target noncreature spell unless its controller pays {2}. • Target creature gets -2/-2 until end of turn. • Mill three cards, then draw a card. (To mill three cards, put the top three cards of your library into your graveyard.)