Four long tentacles writhe from this three-eyed fish-like creature’s flanks, and its green body glistens with thick, clear slime.
Environment: Aquatic
Organization: 1-19
Proficiency Score: +8
Huge; Individual/Repute; aberration, aquatic
Armor Class: 22 (+1 Dex, +5 Natural, –2 Size, +8 Proficiency)
Hit Points: 168 (12d8+72)
Speed: 10 feet, Swim 60 feet
Initiative: +1 (advantage)
| STR | DEX | CON | INT | WIS | CHA |
| 16 (+3) | 12 (+1) | 22 (+6) | 15 (+2) | 17 (+3) | 17 (+3) |
Saves:
- Fortitude +14
- Reflex +1
- Will + 11
+1d6 against effects with the magical or supernatural tags
Skills:
- Arcana +10
- Athletics +11
- Deception +11
- Intimidation +11
- Perception +11
Senses: Passive Perception 21, darkvision 60 feet
Languages: Aboleth, Aklo, Aquan, Undercommon
Aura (Mucus Cloud, 5-foot aura). While underwater, an Aboleth exudes a cloud of transparent slime. All creatures adjacent to an Aboleth must succeed on a DC 20 Fortitude save each round or lose the ability to breathe air and gain the ability to breathe water for 3 hours. Renewed contact with an Aboleth’s mucus cloud and failing another save extends the effect for another 3 hours.
Hold Breath (-). An Aboleth never risks drowning.
Slime. A creature hit by an Aboleth’s tentacle must succeed on a DC 20 Fortitude Save or their skin and flesh transform into a clear, slimy membrane over the course of 1d4 rounds. The creature’s new “flesh” is soft and tender, reducing its Constitution score by 4 as long as it persists. If the creature’s flesh is not kept moist, it dries quickly, and the victim takes 1d12 points of damage every 10 minutes. Remove Disease and similar effects can restore an afflicted creature to normal. Immunity to disease offers no protection from this attack.
Spells.
Spell Attack +11, Spell DC 24
At Will:
3 per 24 hours:
- Dominate as per Level 9 Spell Slot
Actions
Tentacles. Melee Strike +11/+6/+1 (reach 15 feet, unarmed) with 5d8+3 bludgeoning damage plus Slime.