Small shadow magical beast (dragon, undead)
Level 4 Skirmisher XP 175

Initiative +8        Senses Perception +3; Darkvision
HP 40; Bloodied 20
Regeneration 5 (if the wyrm-wisp takes radiant damage, regeneration does not function on its next turn)
AC 17; Fortitude 14, Reflex 17, Will 14
Immune disease, poison; Resist 10 necrotic; insubstantial
Speed fly 8 (hover); phasing

S2 Shadow Bite (standard, at-will) X Necrotic

+7 vs Reflex; 1d10+4 necrotic damage, and the target is weakened (save ends).

Combat Advantage X Necrotic

The wyrm-wisp deals 1d6 extra necrotic damage against any target it has combat advantage against.

Death Dive (move; encounter) X Necrotic

The wyrm-wisp shifts 6 squares. If it enters the space of another creature, that creature takes 1d6 necrotic damage and is weakened until the end of the wyrm-wisp’s next turn.

Alignment Chaotic evil        Languages Draconic
Skills Stealth +11
Str 10 (+2)      Dex 19 (+6)      Wis 12 (+3)
Con 13 (+3)      Int 6 (0)      Cha 10 (+2)

Published in Draconomicon: Chromatic Dragons, page(s) 204.