How would you make a spell with multiple simultanious lightning effects at once?

[cojaan]

I want to have a lightning effect hit each target in an area at the same time. like a lighting effect from the caster to the enemies at the same time. and display it for like .5 seconds then they all disappear.

 

[AddE]

what kinda lighting .. the doodad lightning ?

 

[NoxMortus]

I think forked lightning already does that (if you mean your making an ability)

OR if you mean you just want lightning to strike units in an area then you need something like this:

Untitled Trigger 002
    Events
    Conditions
    Actions
        Unit Group - Pick every unit in (Units in Island 1 <gen>) and do (Actions)
            Loop - Actions
                Special Effect - Create a special effect attached to the origin of (Picked unit) using Doodads\Cinematic\Lightningbolt\Lightningbolt.mdl