Rank 1 Increases the Armor and resistances granted by your Frost Armor and Ice Armor spells by 15%, gives your Frost Ward a 10% chance to negate the warded damage spell, and increases the amount absorbed by your Ice Barrier and Frost Ward by 10%.
Rank 2 Increases the Armor and resistances granted by your Frost Armor and Ice Armor spells by 30%, gives your Frost Ward a 20% chance to negate the warded damage spell, and increases the amount absorbed by your Ice Barrier and Frost Ward by 20%.