It began with waves of fire, much like the ones Asha'man used. Only these were far larger. The flames burned terrible swaths of death through the Trollocs. They followed the course of the land, seeping up the hill and down into the trenches, filling them with white-hot fire, searing and destroying. Clouds began to form and swirl above the city. The wind picked up, howling, and lightning struck from above. Blasts of thunder overpowered the sounds of drums as Trollocs tried in vain to get to al'Thor, climbing over the burning carcasses of their brethren. The swirling white clouds crashed into the black, boiling tempest, intermingling. Wind spun around al'Thor, whipping at his cloak.
The man himself seemed to be glowing. Was it the reflection of the swaths of fire, or perhaps the lightning blasts? Al'Thor seemed brighter than them all, his hand upraised against the Shadowspawn. His Maidens hunched near the ground on either side of him, eyes forward, shoulders set against the great wind.
Clouds spinning about one another made funnels into the masses of Trollocs, sweeping across the top of the hill, taking up the creatures into the air. Great waterspouts rose behind, made of flesh and fire. The beasts rained down, falling upon the others. Ituralde watched with awe, the hair on his arms and head rising. There was an energy to the very air itself. Waves of Trollocs broke, the drums faltering. Entire legions of them turned and fled, stumbling up the hillside and over one another, fleeing back toward the Blight. Some remained firm—too angry, too intimidated by those driving them, or too stupid to flee. The tempest of destruction seemed to come to a peak, flashes of light blasting down in time with howling wind, thrumming waves of burning flame, tinkling shards of ice.
It was a masterwork. A terrible, destructive, wonderful masterwork. Al'Thor lifted his hand toward the sky. The winds grew faster, the lightning strikes larger, the fires hotter. Trollocs screamed, moaned, howled. Ituralde found himself trembling.
Al'Thor closed his hand into a fist, and it all ended.
Wheel of time. Towers of midnight / A storm of Light (Book 13 chapter 32 )