[Spell] Hello, sorry for my bad english, but i'm having trouble creating a trigger for my map, however i'm n

[Iraxx]

Hello,
sorry for my bad english, but i'm having trouble creating a trigger for my map, however i'm not very experienced with it.
How it would be: I wanted to create a passive effect of an item using a trigger that when the hero is in his inventory the item would have the effect, every time he uses a skill that causes damage to the target (either single target or area damage) he would activate the Forked Lightning ability on the first target that took damage and will have a cooldown for that effect. Is it possible to create a trigger with this effect or something similar?

 

[Map Designer]

I dont think you need trigger for forked lightening. copy the ability to make it custom ability, and set the field
Item ability - True
and give the ability to some item.