[ Battle plans are something he's not very used to; in all his various guises, he's never needed to fulfill the role of a fighter. An assassin wasn't the type to face an opponent head on.

Still, he has some ideas. ]

If my hypothesis is correct, it will only get colder as we approach the target. She has the ability to freeze people solid, which is presumably a close range ability.

With that in mind, I'd suggest that we surround her and attack from multiple angles to minimize the risk that she'll focus on one person. Keep moving and try not to spend too much time close to her - the assumed temperature drop will slow down reaction times and movement.