Aboleth
Source: SRD / Basic Rules
title: Aboleth
*Large aberration, Lawful Evil*
- **Armor Class** 17 (natural armor)
- **Hit Points** 135 (`18d10 + 36`)
- **Speed** 10 ft., swim 40 ft.
|STR|DEX|CON|INT|WIS|CHA|
|:---:|:---:|:---:|:---:|:---:|:---:|
|21 (+5)| 9 (-1)|15 (+2)|18 (+4)|15 (+2)|18 (+4)|
- **Proficiency Bonus** +4
- **Saving Throws** Constitution +6, Intelligence +8, Wisdom +6
- **Skills** History +12, Perception +10
- **Senses** darkvision 120 ft., passive Perception 20
- **Languages** Deep Speech, telepathy 120 ft.
- **Challenge** 10
## Traits
***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 feet 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.
## Actions
***Multiattack.*** The aboleth makes three tentacle attacks.
***Tentacle.*** *Melee Weapon Attack:* `+9` to hit, reach 10 ft., one target. *Hit:* 12 (`2d6 + 5`) bludgeoning damage. If the target is a creature, it must succeed on a DC 14 Constitution saving throw or become diseased. The disease has no effect for 1 minute and can be removed by any magic that cures disease. After 1 minute, the diseased 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](compendium/spells/heal.md) 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 before 10 minutes have passed.
***Tail.*** *Melee Weapon Attack:* `+9` to hit, reach 10 ft., one target. *Hit:* 15 (`3d6 + 5`) bludgeoning damage.
***Enslave (3/Day).*** The aboleth targets one creature it can see within 30 feet of it. The target must succeed on a DC 14 Wisdom saving throw or be magically [charmed](rules/conditions.md#charmed) by the aboleth until the aboleth dies or until it is on a different plane of existence from the target. The [charmed](rules/conditions.md#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](rules/conditions.md#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.
## Legendary Actions
***Detect.*** The aboleth makes a Wisdom ([Perception](rules/skills.md#Perception)) check.
***Tail Swipe.*** The aboleth makes one tail attack.
***Psychic Drain (Costs 2 Actions).*** One creature [charmed](rules/conditions.md#charmed) by the aboleth takes 10 (`3d6`) psychic damage, and the aboleth regains hit points equal to the damage the creature takes.Environment
underdark