Loathsome Chanter
Medium immortal humanoid (devil)
Level 11 Minion XP 150

Initiative +6        Senses Perception +6; Darkvision
HP 1; a missed attack never damages a minion.
AC 27; Fortitude 23, Reflex 22, Will 22
Resist 10 fire, 10 poison
Speed 6, teleport 3

(⚔) Claw (standard, at-will)

+16 vs AC; 6 damage.

ᗕ Death's Rebuke ( when reduced to 0 hit points, ) ✦ Psychic

Close burst 2; targets enemies; +14 vs Will; 6 psychic damage.

Alignment Evil        Languages Supernal
Str 14 (+7)      Dex 12 (+6)      Wis 12 (+6)
Con 14 (+7)      Int 10 (+5)      Cha 12 (+6)

Published in Dungeon Master's Guide 2, page(s) 76.