This is one of the spells that the Romans can use.
Seige catapults cause explosions that damage and burn enemies.
Seige catapults launch exploding pots in a medium sized area. There is a 3 second delay before the first pot lands (so you should always lanch your catapult in front of your target), which will be followed by 2 more pots. The number of pots can be increased by upgrading this spell. Catapults have about the same damage output as cavalry, but this damage can be increased through upgrading. These attacks damage all enemies nearby, and burns enemies it hits. This 130 gold spell is a magic type attack. Seige catapults are useful to have on the final level.