The alliance army's crusade against Ur-Hekal began, and the first to attack was the hundreds of catapults.
These catapults looked different in styles because various races made them. The orc's catapults were simple and crude, while the humans were finely crafted. As for the elves, theirs looked slender. But regardless of what race made the catapults, they had enough tonnage and looked gigantic. When the winches pulled back the thick arms bit by bit until they laid flat, the cyclopes or titans waiting at the side would carry boulders weighing hundreds of kilograms or even nearly a ton and place them on the throwing arms.
When these steps finished, soldiers would cut the restraining ropes and cause the throwing arms to spring back suddenly. The arms would throw these heavy boulders out and smash them at the city wall of Ur-Hekal with tremendous kinetic energy.