Silumgar's Command is a rare Instant card from Dragons of Tarkir Promos (PDTK), collector number 232s. Current market price: — (foil $0.79), TCGplayer market prices via Scryfall.
Choose two — • Counter target noncreature spell. • Return target permanent to its owner's hand. • Target creature gets -3/-3 until end of turn. • Destroy target planeswalker.