Aboleth Overseer
Large aberrant magical beast (aquatic)
Level 18 Elite Controller (Leader) XP 4000

Initiative +12        Senses Perception +16; Darkvision
Mucus Haze aura 5; enemies treat the area within the aura as difficult terrain.
HP 348; Bloodied 174
AC 35; Fortitude 33, Reflex 31, Will 33
Saving Throws +2
Speed 5, Swim 10
Action Points 1

Tentacle (standard, at-will)

Reach 2; +22 vs AC; 1d8+8 damage (3d8 + 8 damage against a dazed target), and the target is dazed (save ends).

Psychic Slime (standard, recharges when first bloodied) Psychic

Close burst 10; targets enemies; +20 vs Will; 2d8+8 psychic damage, and the target is dazed (save ends).

Dominate (standard, at-will) Charm

Range 10; targets a dazed humanoid; +20 vs Will; the target is dominated (save ends). An aboleth overseer can dominate only one creature at a time.

Enslave (standard, at-will) Charm, Psychic

Range 5; targets a dominated creature; +20 vs Reflex; 6d8+8 psychic damage. A target reduced to 0 hit points or fewer by this attack doesn’t die but becomes enslaved in preparation for the Aboleth Servitor ritual. Enslaved targets are dominated, and only the death of the overseer can end this domination. Once a creature is enslaved, an aboleth overseer is free to dominate other creatures.

Invisibility (minor; encounter) Illusion

The aboleth overseer and one ally within 10 squares of it turn invisible until the end of the aboleth overseer’s next turn.

Alignment Evil        Languages Deep Speech, telepathy 20
Skills Arcana +20, Dungeoneering +21, Insight +21
Str 26 (+17)      Dex 16 (+12)      Wis 25 (+16)
Con 22 (+15)      Int 23 (+15)      Cha 22 (+15)

Published in Monster Manual, page(s) 8, Dungeon Magazine 170, page(s) 72, E1 Death's Reach, page(s) 45.