There and Back Again

Enchantment — Saga{3}{R}{R}

(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 this Saga. 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 Smaug dies, create fourteen Treasure tokens."

Colour identity Red · Treasure, Haste

In short

There and Back Again has 3 listed printings; the most valuable is the Showcase Scrolls printing from LTR at US$35.80 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.