Abyssal Cold (4e Power)

Abyssal Cold	Grim Blackguard Attack 12
When you hit your enemy with your weapon, he freezes and cannot move
Encounter  Divine, Shadow, Weapon
Standard Action	Melee weapon
Target: One creature
Attack: Strength Vs. Will
Hit: 2[W} + Strength modifier cold damage and the target is immobilized until the end of your next turn