Catapult

Catapults are the last category of building in the game. The function like the Tower, but you can choose where the stone(s) land. You should aim it slightly in front of armies so the rocks hit the army. Like the tower you can have small and large ammo.the different types of ammo have the same bonus depending on the ammo. As you upgrade the catapult it gets bigger and better. The cooldown shortens with each upgrade.