Pre-New 52 Nightwing, Red Hood, and Tim Drake Robin Versus the "Big 3" of the Birds of Prey (well, besides Oracle anyway): Black Canary, Huntress, and Lady Blackhawk, all circa Gail Simone's second BoP run
Fight takes place in the Gotham Football Stadium from The Dark Knight Rises. All combatants are in-character save Jason who is refraining from using lethal force for the time being. Victory comes when all combatants on either side are KO'ed.
Round 1: Strictly H2H
Round 2: Standard Gear and Weaponry for all.