There and Back Again (Showcase Scrolls)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) [I] Up to one target creature can't block for as long as you control There and Back Again. The Ring tempts you. [II] Search your library for a Mountain card, put it onto the battlefield, then shuffle. [III] Create Smaug, a legendary 6/6 red Dragon creature token with flying, haste, and "When this creature dies, create fourteen Treasure tokens."