Trigger Help Please

[DemonicMuskrat]

Okay, I'm ashamed to say it but I'm having a little trouble getting a trigger to do what i want it to do. It shouldn't be hard but well... its just not happening for me
So heres what i want to do:
A unit casts a specific ability on a specific unit (as in, only one type of unit, not pre-selected)
The level of a specific ability of the targeted unit is changed to the level of the casted ability + 1

So yes, its very simple but i cant seem to get the first part. I haven't learned JASS since this map is a one off thing, so maybe some custom script would work?

 

[xAbysSx]

You dont need JASS to do this, so heres the GUI trigger.
The level of ability for the target is changed? Ok then...

• Spell
  • Events
    • Unit - A unit Begins casting an ability
  • Conditions
    • (Target unit of ability being cast) Equal to (The Specific Unit)
  • Actions
    • Unit - Increase level of (Ability being cast) for (Target unit of ability being cast)

 

[DemonicMuskrat]

So now i feel stupid. xD
You see i somehow hadn't noticed that Target unit of ability being cast was there... dont ask me how...