Ikoria: Lair of Behemoths is a Magic: The Gathering set set on a plane of giant monsters, introducing the Companion mechanic that lets a deck bring a bonded creature straight from outside the game into play. The set is built around monstrous, multi-species creatures and a cycle of powerful, format-warping Companions that saw immediate competitive bans and restrictions. Its mutate mechanic also let creatures merge and stack abilities in creative ways. Shop Ikoria: Lair of Behemoths booster packs and sealed product, or browse singles from this monster-themed set.