Leviathan of War
Armor Class 22 (natural armor)
Hit Points 315 (30d12+120)
Speed 10 ft. swim 60 ft.
Saving Throws Con +13, Wis +7
Skills Athletics +15, Perception +9
Senses darkvision 60 ft., passive Perception 14
Languages Common, Aquan
Challenge 16 (15,000 XP) Proficiency Bonus +5
Actions
Legendary Actions
The creature can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The creature regains spent legendary actions at the start of its turn.
Lair
Lair Actions
On initiative count 20 (losing initiative ties), the creature can take a lair action to cause one of the following effects; it can't use the same effect two rounds in a row:
- Tempest of Iron Tide. On initiative count 20, a violent water current surges around the lair, pushing creatures within 60 feet up to 15 feet and dealing 4d8 bludgeoning damage.
- Warlord's Echo. A booming drumbeat resonates through the water within 120 feet. Any hostile creature must succeed on a DC 18 Wisdom saving throw or be frightened for 1 round.
- Hull of War. The Leviathan's armor swells with war-magic, granting it advantage on all melee attack rolls until the next round.
Regional Effects
The region containing the creature's lair is warped by its magic, creating the following effects:
- Within 6 miles of the lair, battles flare with unnatural ferocity; commanders lose track of time and armies press on despite heavy losses.
- Slick, blood-tinged water fouls the seas around the lair, making navigation perilous for ships.
- War-magic leaks into the area; neutral creatures feel compelled to join or watch the conflict.
If the creature dies, these effects fade over 1d10 days.
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Lore & Description
Appearance
A colossal leviathan cloaked in storm-dark plates studded with copper and iron runes. Its maw is a furnace of teeth, its eyes burn like an anvil's core, and its scales tremble with the memory of battles long past. It drifts through the ocean like a tidal wave of war, feeding on the energy of combat—the roar of cannons, the clash of blades, and the crackle of battlefield magic. The hungrier it grows, the more wars rage around it; fleets and armies vanish into its gaping maw, leaving only the echo of war behind.
Behavior & Origins
Born from the violent confluence of sea kingdoms and battle-magic, the Leviathan of War thrives on the energy of conflict. Each great battle fuels its power, granting it greater size and hunger. Some traditions claim a ritual to pacify it by ending war outright, but those rites are perilous and rarely fulfilled. The Leviathan cannot be appeased by sword or spell alone; it seeks a cycle to feed on, and breaking that cycle may be the only way to end its reign.
