Magic: The Gathering Universes Beyond — The Lord of the Rings: Tales of Middle-earth

From BoardGameGeek:

In this crossover expansion, Magic: The Gathering visits the world of Middle-earth, with a full-size draftable booster set depicting the events of the Lord of the Rings novels on Magic cards for the first time ever. The set features the return of the Amass mechanic (originally seen in War of the Spark) as well as a new mechanic: "The Ring tempts you." When the Ring tempts you, you choose a creature to be your ringbearer, and that creature becomes legendary and gains a suite of special abilities that are more potent the more times you've been tempted. The Lord of the Rings: Tales of Middle-Earth is sold in draft boosters, set boosters, collector boosters, Jumpstart boosters, bundles, and two-player starter kits. Each sealed booster box contains a foil box topper, which is a reprint of a popular existing Magic card reskinned as an item or location from Lord of the Rings. Four preconstructed Commander decks were also released as tie-ins for the set.