Medium aberrant magical beast (shapechanger)
Level 16 Elite Skirmisher XP 2800

Initiative +17        Senses Perception +14; low-light vision
HP 292; Bloodied 146
Regeneration 10 (if Arathluth takes damage from a silvered weapon, its regeneration doesn't function on its next turn.)
AC 32 (34 against opportunity attacks); Fortitude 29, Reflex 32, Will 29
Immune poison
Saving Throws +2
Speed 2 (clumsy), legged form 6, fly 6 (hover)
Action Points 1

Slam (standard, at-will)

2d6+7 damage.

Lurching Lashes (standard, at-will)

Arathluth makes two basic melee attacks. If an attack hits, the target also slides 2 squares. Arathluth can move 3 squares before or after each attack.

Mangle (standard, recharge )

Arathluth makes two basic melee attacks against the same target. If both hit, it makes a secondary attack against that target.

Secondary Attack 1d8+7 damage (no attack roll needed).

Combat Advantage

Arathluth deals an extra 2d6 damage on melee attacks against any target it has combat advantage against.

Change Shape (minor; at-will) Polymorph

Arathluth can alter its physical form to appear as any Small, Medium, or Large creature.

Alignment Chaotic evil        Languages Chondathan, Common, Deep Speech
Skills Acrobatics +20, Bluff +18, Insight +14, Intimidate +18, Stealth +20
Str 11 (+8)      Dex 25 (+15)      Wis 12 (+9)
Con 20 (+13)      Int 19 (+12)      Cha 21 (+13)

Published in Forgotten Realms Campaign Guide, page(s) 258.