Making NPCs use multiple spells

[McclaudEagle]

For most of the day, I've been trying to make my necromancer NPC use magic rather than just his sword. After countless hours, I succeeded in doing that. He now wield a sword in his right hand, and uses spells in his left...

 

...However, I have another problem which I can't seem to fix. The NPC has a list of about 4-5 spells, but only ever uses the same spell over and over again. The spell in question is the vanilla Chain Lightning. He has custom spells such as the ability to reanimate up to 30 dead NPCs in a 5,000 radius, a spell that summons a spectral mage, etc...but he won't use any of them. He won't even use the shout he's been giving (Storm Call).

 

Does anyone know how to make NPCs use every spell in their spells list?

[jackowonderful]

i assume you have to give them the right ai to change spells. never done it before myself.

[McclaudEagle]

Yeah, I tried this a while ago and that was what fixed the first problem (his inability to use magic), however, it doesn't alter the chance to use different spells.

 

Thanks though.