Rank 1: Increases the damage caused by your Frostbolt, Frostfire Bolt and Ice Lance spells by 1% and reduces the movement speed of all chilled targets by an additional 2%.

Rank 2: Increases the damage caused by your Frostbolt, Frostfire Bolt and Ice Lance spells by 2% and reduces the movement speed of all chilled targets by an additional 4%.

Rank 3: Increases the damage caused by your Frostbolt, Frostfire Bolt and Ice Lance spells by 3% and reduces the movement speed of all chilled targets by an additional 6%.

Rank 4: Increases the damage caused by your Frostbolt, Frostfire Bolt and Ice Lance spells by 4% and reduces the movement speed of all chilled targets by an additional 8%.

Rank 5: Increases the damage caused by your Frostbolt, Frostfire Bolt and Ice Lance spells by 5% and reduces the movement speed of all chilled targets by an additional 10%.