No prep for any rounds except round 5 (see below), standard new 52 gear, pre 52 feats for Slade and pre 52 and new 52 feats for batman.
Round 1: Red Hood, Red Robin, Nightwing
Round 2: Green Arrow, Deadpool, and Dardevil
Round 3: Lady Shiva, captain america
Round 4: Iron fist with chi and kraven
Round 5: Wolverine and Black panther but Slade and Bruce have thirty minutes prep with full knowledge on BP and Wolvie. They can go to the bat cave or wherever Slade is currently living but only for 30 minutes.