Aboleth Slime Mage
Large aberrant magical beast (aquatic)
Level 17 Artillery (Leader) XP 1600

Initiative +11        Senses Perception +15; Darkvision
Mucus Haze aura 5; enemies treat the area within the aura as difficult terrain.
HP 128; Bloodied 64
AC 31; Fortitude 28, Reflex 28, Will 29
Speed 5, Swim 10

(⚔) Tentacle (standard, at-will)

Reach 2; +19 vs AC; 1d8+6 damage (3d8 + 6 damage against a dazed target), and the target is dazed (save ends).

➶ Slime Orb (standard, at-will) ✦ Psychic

Ranged 10; +22 vs Reflex; 2d8+7 psychic damage, and the target is slowed (save ends).

➶ Dominate (standard, at-will) ✦ Charm

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

✻ Slime Burst (standard, encounter) ✦ Psychic

Area burst 4 within 10; targets enemies; +17 vs Reflex; 2d8+7 psychic damage, and the target is immobilized (save ends).
Aftereffect: The target is slowed (save ends).

Alignment Evil        Languages Deep Speech, telepathy 20
Skills Arcana +19, Dungeoneering +20, Insight +20
Str 23 (+14)      Dex 16 (+11)      Wis 25 (+15)
Con 20 (+13)      Int 23 (+14)      Cha 20 (+13)

Published in Monster Manual, page(s) 8, Underdark, page(s) 91, Dungeon Magazine 170, page(s) 69.