How do I make the AI use abilities?

[monissa]

Helloo, I'm new to the warcraft 3 map editor and I haven't been able to figure out how to make the computer cast spells. I've tried a simple trigger that I've found online, but it hasn't worked for me. The unit is a custom unit, and I'm trying to have them cast an already-existing spell. It is a colored hero unit too, if that means anything. I know this has been asked before, but even after reading through some of them, it hasn't solved it for me yet because I'm so clueless with triggers

 

[Warseeker]

You can order directly a unit to cast spells via trigger, the simpliest way is (Order unit to "Ability Name"...)
Do note that some costum abilities may not be able for cast using that method ^^.

 

[Almia]

if it is an ability that was copied from abilities that are not Channel-based (not "channel"), it will already have an AI encoded to it. i.e. Wave spells like Carrion Swarm will automatically cast for units if there are enough units in front of it (I think it is a minimum of 3)

 

[teozamait]

The AI will not cast all base abilities. There was a list on this site but I am pretty sure that a few base spells are never used by the AI.

What spell is your ability based on?