Casting Lightning Bolt If «Tempest»: , Tempest, Lava Burst, or Chain Lightning has a chance to replace your next Frost Shock with Icefury, stacking up to the maximum stack count times.
Icefury
Hurls frigid ice at the target, dealing 2,405 Frost damage and causing your next Frost Shock to deal 200% increased damage, damage 4 additional targets, and generate 7 additional Maelstrom.
Generates 12 Maelstrom.
