Adding spell damage per Inteligence?

I know it's trigger-based, so I'm gonna ask here. When casting a spell, how do you add damage per Inteligence to target or AOE damage? Do I have to re-create the whole spell in triggers?

NOTE: If you were wondering, I'm going to use regular spells, not trigger enhanced ones.

It depends. If you want the spell to deal damage based entirely on intel then yes, you need to do the whole spell in triggers. If however you want the spell to have a base damage and then get additional damage based on intel then no, you don't have to trigger the entire thing. Just add a trigger that makes a hidden unit deal spell damage to the area or target based on the casting units intel whenever the effect of the ability is started.

Can't I do the damage in triggers? As in, using the "deal damage" trigger, dealing <damage> x <multiplier>?, using attack type spells and damage type universal?

Because, I don't know how to have dummy units actually deal damage, or spell damage in any case.

Set health, you mean. Yes, you can do that. I also endorse doing so.

Reaper, what do you mean by "set health"? I don't undetstand what you are saying.

one of the actions a trigger can do is unit - set health of unit to
and you can set that value to current health of unit minus damage caused

using the 'set health' action is the worst thing to use for damaging units with spells. if the unit is killed when setting the health the caster wouldn't get any exp nor bounty.

some spells are easy to enhance with damage based on intelligence, especially those who are instant unit targeted (spells with no missile)
like frost nova.

else, if you are going to enhance for example Shockwave, the you have to trigger the spell completely.

instead of using the 'set health' action (can't really remember the correct name, something with Unit - Set Health/Property) use Unit - Damage Target.

You can't, you have to use pure trigger enhanced spells and just use the intelligence of the casting unit to increase the damage of them.

I think I'll try that myself, before moving on a conclusion.

vex, isn't it possible to for example when using Frost Nova, set the damage to 0 and then by triggers put all enemies in range of target point of ability being cast and use Unit - Damage Target?

That is exactly a spell enhanced with triggers, try the same with storm bolt and flame strike

... I already know what a spell enhanced trigger is, so I don't find that helpful.

So, what was your question again, then...
Let me see... ah, ok. Yes, you need to trigger the spell to have it deal damage based on the hero's inteligence.

ah. right. and a triggered spell is a spell completely made by triggers. then i know the differences :)

I have to say that I have never seen a spell made completelly with triggers.