Fire an ice shard at target that deals 325/455/650 magic damage. If they are Chilled, the damage Critically Strikes. Chill: Reduce Attack Speed
Summon a Frozen Tower. Allies in front of it gain Health and allies behind it gain Damage Amp. Freljordians gain 150% more.
Your team gains 1 Mana Regen. Invokers gain more Mana from all sources.