Korvold and the Noble Thief

(3) (R) 

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
[I], [II] Create a Treasure token. (It’s an artifact with “(T), Sacrifice this artifact: Add one mana of any color.”)
[III] Exile the top three cards of target opponent’s library. You may play those cards this turn.