Shardstorm Icewind
Medium elemental magical beast (air, cold, earth)
Level 27 Minion Skirmisher XP 2750

Initiative +24        Senses Perception +20
Iceblast aura 1; each enemy within the aura takes a -2 penalty to all defenses. The area of the aura is difficult terrain for creatures without ice walk.
HP 1; a missed attack never damages a minion.
AC 41; Fortitude 39, Reflex 40, Will 38
Immune cold, disease, poison
Speed fly 8 (hover)

(⚔) Ice-Shard Slam (standard, at-will) ✦ Cold

+30 vs Fortitude; 15 cold damage.

Vortex Step (move; at-will)

The shardstorm icewind shifts 4 squares.

Alignment Unaligned        Languages Primordial
Str 13 (+14)      Dex 29 (+22)      Wis 24 (+20)
Con 26 (+21)      Int 7 (+11)      Cha 9 (+12)

Published in Dungeon Magazine 174, page(s) 41.