As your blade lances into your foe, ice erupts from the wound, winding around your enemy's limbs in a crushing embrace.

Encounter   ✦     Arcane, Cold, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. Fortitude

Hit: 1[W] + Intelligence modifier damage, and the target is weakened until the end of your next turn. If the target attacks while it is weakened, it takes cold damage equal to 5 + your Constitution modifier.

Published in Forgotten Realms Player's Guide, page(s) 32.