Large elemental magical beast (demon)
Level 14 Skirmisher XP 1000

Initiative +16        Senses Perception +7
HP 138; Bloodied 69
AC 29; Fortitude 26, Reflex 29, Will 24
Resist 10 variable (2/encounter)
Speed 6, climb 6 (spider climb), fly 10

Gore (standard, at-will)

+19 vs AC; 2d6+7 damage, and ongoing 5 damage (save ends), or ongoing 10 damage if the target already has ongoing 5 damage (save ends).

Mobile Melee Attack (standard, at-will)

+17 vs ; 2d8+6 damage.. A chasme can move up to half its speed and make one melee basic attack at any point during that movement. The chasme doesn’t provoke opportunity attacks when moving away from the target of its attack.

Drone (standard, recharges when first bloodied) Sleep

Close burst 2; targets creatures without the demon keyword; +17 vs Will; the target is dazed (save ends). First Failed Saving Throw: The target is unconscious (save ends).

Chasme Mobility

The chasme gains a +2 bonus to AC against opportunity attacks provoked by movement.

Combat Advantage

The chasme deals an extra 1d6 damage against any target it has combat advantage against. This damage increases to 2d6 against unconscious foes.

Alignment Chaotic evil        Languages Abyssal
Skills Bluff +14, Insight +12, Intimidate +14, Stealth +19
Str 19 (+11)      Dex 24 (+14)      Wis 10 (+7)
Con 18 (+11)      Int 11 (+7)      Cha 14 (+9)

Published in Manual of the Planes, page(s) 121, Dungeon Delve, page(s) 74, Dungeon Magazine 163, page(s) 70.