The Lost Caverns of Ixalan is a Magic: The Gathering set exploring the vast cave systems beneath the plane of Ixalan, home to ancient civilizations, ravenous cave-dwelling creatures, and long-buried dinosaur fossils. The set introduced Descend, a graveyard-count mechanic that rewards decks for milling and self-mill strategies, alongside a fresh wave of dinosaur, vampire, and pirate tribal support. Its underground setting gave the plane's familiar factions a whole new frontier to explore. Shop Lost Caverns of Ixalan booster packs and sealed product, or browse singles from this underground-explorer set.