Option isn't currently available to select but this build was intended to work with Fractured Blast in place of Storm of Ukko.

Why Fractured Blast?

• High potential number of targets hit
• Synergizes well with Collective Curse to make culling effected targets a bit more efficient.
• Scales with Power: At the the builds base 234% Strength, the chance of dropping the all important health orbs is ~58%
• Cheap: Even at Negative 50% Efficiency it only costs 37.5 energy to cast
• Impact proc interrupts actions for short crowd control of normal units.