Frostweaver's Wrath

Each time you generate Winter Orbs, you have a 20% chance to gain Frostweaver's Wrath for 20 seconds, causing the next Glacial Blast or Ice Comet that deals damage to have 100% additional critical strike chance. GRIEVOUS CRITICAL STRIKE Any critical strike chance you have beyond 100% causes a grievous critical strike. Grievous critical strikes increase the base damage of the hit by an amount equal to the overflowing critical strike chance.