Leviathan

D&D 2024 monster: Leviathan. Source: Mordenkainen's Tome of Foes. challenge rating 20, creature type Elemental, Gargantuan size, speed 40 ft., swim 120 ft. Leviathan A towering wall of water that drags ships down to the ocean's depths and washes away coastal settlements-that phenomenon typifies the destruction a leviathan can unleash on the world. When called forth, a leviathan arises from a large body of water to form an immense serpent-shaped creature. Elder Elementals On their native planes, elementals sweep across the weird and tempestuous landscape. Some possess greater power, gained by feeding on their lesser kin and adding the essence of creatures they have devoured to their own until they become something extraordinary. When summoned, these elder elementals manifest as beings of apocalyptic capability, entities whose mere existence promises destruction. Deadly When Summoned The methods for summoning elder elementals remain hidden in forbidden tomes or inscribed on the walls of lost temples raised to honor the Elder Elemental Eye. Only casters of superlative skill have even the faintest chance of calling forth one of these monsters, and the spellcaster is often destroyed by the effort. Thus, only the most unhinged and nihilistic members of Elemental Evil cults attempt such a summoning, in the hope of hastening the world toward some cataclysmic end. Elemental Nature An elder elemental doesn't require air, food, drink, or sleep. Elemental Gargantuan 40 ft., swim 120 ft.