Sultai Ascendancy is a rare Enchantment card from Khans of Tarkir Promos (PKTK), collector number 203s. Current market price: — (foil $1.71), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)