Every time I start thinking about this, I keep assuming Illy is Dick Grayson. God damn circus. At least she doesn't have Nightwing's glorious hair.
Illy's born in to a Super family, well at one time the parents were Supers. Her mom went rogue and abandoned Illy to her father, who retired from Super life to the circus. He raised both his girls to be heroines, but Illy is never quite a whitehat. More like, a very light shade of gray hat. The whole family is Magic Types. She has a multitude of spells under her belt, but her real skill is in Animation. Causing inanimate objects to come to life.
She's helped both more ambiguous types (STEFAN :|||) and some hero types. People noticed a change of leaning more towards the Good Guys when she started working the same area as another crime fighter that she teams with frequently. No one knows why. Hmm...
(For the AU, Leesha, Those Two are basically Joker and Harley Quinn. XD)