Knight of Sursi is a common Creature — Human Knight card from Future Sight (FUT), collector number 10. Current market price: $0.16 (foil $0.52), TCGplayer market prices via Scryfall.
Flying; flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) Suspend 3—{W} (Rather than cast this card from your hand, you may pay {W} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)