A wall of glittering, jagged ice appears at your command.

Daily   ✦     Arcane, Cold, Conjuration, Implement
Standard Action      Area wall 12 within 10 squares

Effect: You conjure a solid wall of ice in unoccupied squares. The wall can be up to 6 squares high, and it lasts for 1 hour or until it is destroyed.
    Any creature that starts its turn adjacent to the wall takes 2d6 + Intelligence modifier cold damage. The wall blocks line of sight and prevents movement. No creature can enter a square containing the wall.
    The squares of the wall can be attacked. Each square has your defenses, and each has 50 hit points as well as vulnerable 25 fire. Any creature that makes a melee attack against the wall takes 2d6 cold damage.

Update (1/24/2012)
Updated in Class Compendium.

Published in Player's Handbook, page(s) 165, Class Compendium.