Endothermic Blaster

At-will, std, line 1x3; you shoot a stream of cold, rapidly cooling everything it touches. Inflicts medium frost damage plus chilled.

Icicle Launcher

At-will, std, ranged; you create a razor-sharp icicle, then propel it forward at a target (Dex vs AC). Inflicts heavy piercing cold damage.

Ice Wall

Recharge 33%, std, ranged, wall 1/level; you create a 10-ft high wall of ice which blocks movement, line of sight, and line of effect. Each square of the wall has HP equal to a heavy damage roll and is vulnerable to fire damage. If reduced to 0 HP, that section is destroyed. The wall lasts until the beginning of the turn after your next turn.

Cryo-Freeze (rank 2)

Reaction; you freeze yourself into a block of ice, rendering you immune to external effects and damage, but unable to move or take physical actions. The block itself has HP equal to a heavy damage roll and is vulnerable to fire. You can end the effect as a free action.

Blizzard (Rank 3)

Encounter, std, ranged, circle 3, 3 rds; on turn start in the area, subjects suffer heavy frost damage plus chilled.