Permafrost

Permafrost is a mage talent that increases the effectiveness of the mage's chill effects, reducing movement speed by an additional amount, up to 10% at max rank 3, and reduces the target's healing received up to 10% at max rank 3. The additional reduction to movement speed is an additive amount, meaning that a snare that normally slows by 50% will now slow by 60%. This talent is popular with frost mages that do a lot of kiting, either against single mobs or when doing frost AoE grinding on multiple mobs at once.