You don't get the Area Target Circle when increasing Area of Effect radius in the 'Channel' ability. That's why I want to use other ability as a base.
I don't want it to be a channeling ability because the animation is interrupted when the duration of the spell hits 0.
So, if you want your ability to start it's effect instantly, there will be no animation.. I tried to make the unit animate through triggers, but it's too complicated and the animation can be interrupted by ordering the unit to do something..