Icicles

While in combat, Frost crystallizes around you, generating an Icicle every.1 sec. Upon generating 5 Icicles, Frostfire Bolt upgrades to Glacial Spike for its next cast.

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Conjures a massive spike of ice that impales your target, dealing damage and slowing the target's movement speed by 50% for 8 sec.

Shatters 5 stacks of Freezing.