Siriokash, King of the Banshees

Against their will, the thousands of hundred-kilogram undead trolls were lifted and thrown up into the sky, spilling out from the giant vortex many tens of meters above ground in all directions. 

Alexander weaved ice magic continuously, commanding the temperature to fall even further, far below zero degrees. At that temperature, the icy winds swept across the undead troll army like a scythe, sending every single one of them sprawling on the ground. Eyes vacant, and absent of will. 

BOOM! BOOM! BO-BOOM! BOOM!

The trolls that were swept up earlier began their descent back to the ground like thousands of catapult projectiles, smashing into their undead brothers with great power and in an unceasing barrage that sent great chills down Aleyria's spine.