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monster

The Abyssal Sovereign

The Abyssal Sovereign
Stat Block
CR 26
Reveal Stat Block
Armor Class
22
Hit Points
600
Speed
20 ft., swim 60 ft.
str
30
dex
10
con
30
int
10
wis
18
cha
20
str
30
+10
dex
10
+0
con
30
+10
int
10
+0
wis
18
+4
cha
20
+5

Senses blindsight 120 ft., passive Perception 14

Languages Telepathy 1 mile

Traits

Siege Monster.The Sovereign deals double damage to objects and structures.
Legendary Resistance (3/Day).If the Sovereign fails a saving throw, it can choose to succeed instead.

Actions

Multiattack.The Sovereign makes three tentacle attacks and one bite attack.
Bite.Melee Weapon Attack: +18 to hit, reach 15 ft., one target. Hit: 32 (4d10 + 10) piercing damage. If the target is a Huge or smaller creature, it is swallowed.
Tentacle.Melee Weapon Attack: +18 to hit, reach 30 ft., one target. Hit: 23 (3d8 + 10) bludgeoning damage and the target is grappled (escape DC 26).
Abyssal Roar (Recharge 6).Each creature within 60 feet must make a DC 23 Wisdom saving throw, taking 66 (12d10) psychic damage and becoming permanently deafened on a failed save.

Legendary Actions

Tentacle Attack.The Sovereign makes one tentacle attack.
Pressure Wave.The Sovereign creates a wave of pressure. Each creature within 20 feet must succeed on a DC 26 Strength saving throw or be knocked prone.

Ecology

The Abyssal Sovereign is a miles-long, ancient Leviathan that has resided in the deepest, lightless trenches of the Broad Swells for millennia. It is a creature of pure muscle, armored scales, and crushing tentacles, rouse from its slumber by the dark rituals of the Obsidian Scale. It views the surface world as a mere source of food and its movements can trigger tsunamis that devastate entire coastlines.

Lair Actions

When fighting in the Abyssal Trench, the Sovereign can use the following lair actions:

  • Pressure Spike: The water pressure in a 40-foot radius suddenly intensifies, dealing 6d6 bludgeoning damage and knocking creatures prone.
  • Ink Cloud: The Sovereign releases a massive cloud of abyssal ink, heavily obscuring a 60-foot radius and dealing 4d6 psychic damage to any creature starting its turn inside.
  • Tentacle Surge: Dozens of smaller tentacles erupt from the ocean floor, attempting to grapple and restrain all creatures in a 60-foot radius.

Combat Mechanics

A Kaiju-level threat, the Sovereign has multiple tentacle attacks, a crushing bite that can swallow Huge or smaller creatures, and an "Abyssal Roar" that causes psychic damage and permanent deafness. Its thick hide is resistant to all non-magical damage and it can use legendary actions to move or attack between turns.

Loot

The Sovereign's primary eye is a massive, glowing gem known as the "Eye of the Deep." It acts as a legendary scrying focus and grants the user the ability to communicate with all aquatic creatures.