Tower Help

I want to make a tower that shoots a "Carrion Swarm" for its projectile model.

However, I want the tower to hit targets the same way the Carrion Swarm ability would, which I think is a cone shaped area effect.

How do I set the tower so that it will damage units in a cone shape like the Carrion Swarm ability?

make carrion swarm an auto casting spell with carrion swarm, and make the spell to cost no mana. then you set the cool down time to the cool down time you want for the tower.

he wants it to have the same effect as carrion swarm.. u cant mak ecarrion swarm auto castable... just remake carrion swarm and set mana cost to 0 and set cool down to the attack speed u want it at. then give that ability to the tower.
then make the tower do no damage(1-1 damage is lowest) and make a trigger that goes like this

Event
a genaric unit event- unit is attacked

Condition
unit type comparion- attacking unit is = The tower

Action
unit-order attacking unit to cast Dread lord carrion swarm on Attacked unit

ps make sure the cooldown for tower is the same as the spell
also make the projectal speed for the tower really fast

You can't just make any old spell an autocasting spell.

Set up a unit ability carrion swarm to the damage settings you want with 0 mana cost. Create a custom "Orb of lightning (NEW)" ability. Change the activated ability for this custom lightning orb ability to your carrion swarm spell. Set the enabled attack index setting with the orb of lightning spell to 1 or 0.

The tower that fires the carrion swarm should do 1 damage and be given only the orb of lightning based ability.