Fixed.Quote from 1TrollLtd
COST: 100 Mana Cold Snap: Ability invokes if Invoker has 3 Quas instances. Invoker draws the heat from an enemy, chilling them to their very core for a duration based on Quas. Further damage taken in this state will freeze the enemy again, dealing bonus damage. The enemy can only be frozen so often, but the freeze cooldown decreases based on the level of Quas.
Seriously, though, Cold Snap should be a spell that freezes the enemy for a short time (really short) every time they get hit.