Using this gem will increase the resistance to Frost Damage for all equipped armor and clothing by 500% for 15 minutes.Special Properties: Dropped on DeathCasts the following spells: Prodigal Frost BaneActivation Requirements: This rare has a restriction timer of 3 minutes. You will not be able to use another rare item with a timer within 3 minutes of using this one.Spellcraft: 325Mana: 10,000