Aboleth

The Aboleth is a Large aberration, with Armor Class 17, 135 hit points, and Challenge Rating 10. An aboleth is an ancient, subterranean apex predator that uses telepathy and enslavement to dominate other sentient beings.

Stat Block

Size: Large
Type: aberration
Challenge Rating: 10
Armor Class: 17
Hit Points: 135
Speed: 10 ft. ft., swim 40 ft. ft.
STR: 21
DEX: 9
CON: 15
INT: 18
WIS: 15
CHA: 18

Abilities & Attacks

Amphibious: The aboleth can breathe air and water. Mucous Cloud: While underwater, the aboleth is surrounded by transformative mucus. A creature that touches the aboleth or that hits it with a melee attack while within 5 ft. of it must make a DC 14 Constitution saving throw. On a failure, the creature is diseased for 1d4 hours. The diseased creature can breathe only underwater. Probing Telepathy: If a creature communicates telepathically with the aboleth, the aboleth learns the creature's greatest desires if the aboleth can see the creature. Multiattack: The aboleth makes three tentacle attacks. Enslave: The aboleth targets one creature it can see within 30 ft. of it. The target must succeed on a DC 14 Wisdom saving throw or be magically charmed by the aboleth until the aboleth dies or until it is on a different plane of existence from the target. The charmed target is under the aboleth's control and can't take reactions, and the aboleth and the target can communicate telepathically with each other over any distance. Whenever the charmed target takes damage, the target can repeat the saving throw. On a success, the effect ends. No more than once every 24 hours, the target can also repeat the saving throw when it is at least 1 mile away from the aboleth. Tentacle Disease: A creature hit by a tentacle must succeed on a DC 14 Constitution saving throw or become diseased. The disease has no effect for 1 minute; after 1 minute, the creature's skin becomes translucent and slimy, the creature can't regain hit points unless it is underwater, and the disease can be removed only by heal or another disease-curing spell of 6th level or higher. When the creature is outside a body of water, it takes 6 (1d12) acid damage every 10 minutes unless moisture is applied to the skin. Legendary Actions: Detect: The aboleth makes a Wisdom (Perception) check. Tail Swipe: The aboleth makes one tail attack. Psychic Drain (Costs 2 Actions): One creature charmed by the aboleth takes 10 (3d6) psychic damage, and the aboleth regains hit points equal to the damage the creature takes. Lair Actions: When fighting inside its lair, an aboleth can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), the aboleth takes a lair action to cause one of the following effects: The aboleth casts phantasmal force (no components required) on any number of creatures it can see within 60 feet of it. While maintaining concentration on this effect, the aboleth can't take other lair actions. If a target succeeds on the saving throw or if the effect ends for it, the target is immune to the aboleth's phantasmal force lair action for the next 24 hours, although such a creature can choose to be affected. Pools of water within 90 feet of the aboleth surge outward in a grasping tide. Any creature on the ground within 20 feet of such a pool must succeed on a 14 Strength saving throw or be pulled up to 20 feet into the water and knocked prone. The aboleth can't use this lair action again until it has used a different one. Water in the aboleth's lair magically becomes a conduit for the creature's rage. The aboleth can target any number of creatures it can see in such water within 90 feet of it. A target must succeed on a 14 Wisdom saving throw or take 7 (2d6) psychic damage. The aboleth can't use this lair action again until it has used a different one.

Common Questions

How much HP does an Aboleth have?

135 hit points.

What is an Aboleth's Challenge Rating?

Challenge Rating 10.

What is an Aboleth's Armor Class?

AC 17.

How fast can an Aboleth move?

Speed 10 ft. ft., swim 40 ft. ft.

Use Aboleth at your table

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Official stats from the D&D 5e (Dungeons and Dragons 5th Edition) System Reference Document (SRD), free to use under its open license.