Maybe a magic user could just be introduced later. An NPC maybe? Maybe they too got abduced and the only way to bring back Robin, Nightwing, and Red Hood was to rescue this person also.
Either way I'm sure you'll find a way, The Kid Lantern ;)
I'm excited to get started on this.

[u]I have a few questions about the universe, if that's alright?[/u]

1. I take it Batman has been protecting Gotham for a good number of years now?

2. Has Bane broken his back in the past?

3. Has Barbara been crippled by the Joker in the past, before returning as Batgirl?