essentially, turning CHA into an AOS. I believe someone made DOTA OMG mode, which is "custom hero dota" I believe. There is also HOSK, a custom hero AOS that already exists.
It has been done twice already, this would simply have a new theme.
Considering you can download free AOS templates... everywhere, you would really need almost no editor skill, and simply a copy/paste of the object editor. Switch over "unit A" to, "new unit A" and you are done.
I think it would be mildly entertaining; but there are already 2 semi-popular games of that nature.
This reminds me of something funny though, I was playing CHA-Defense the other day, and some guy kept asking when we got to fight rag.