Prosper, Tome-Bound (Display Commander) - Thick Stock (AFC-002) - Forgotten Realms Commander Display Commanders Etched Foil

Deathtouch
Mystic Arcanum — At the beginning of your end step, exile the top card of your library. Until the end of your next turn, you may play that card.
Pact Boon — Whenever you play a card from exile, create a Treasure token.