Batman dodges all of the oncoming wall spikes, and Meta-Grundy's fists, as she maneuvers around the room. She goes into analysis mode, opening a connection with Jean-Paul. It crackles at first, but the connection comes through.

"-crcckstatman? Batman, do you read? This looks bad. The metal is some kind of titanium alloy- it's going to be hard to beat, especially with his control. But, generally speaking, Magnus stuff doesn't do well in the cold."

The detonating batarangs have no such properties, though- and they only serve to blow out super hot chunks of molten steel alloy from Meta-Grundy's bulk as projectiles- which all but Steph manage to dodge. That's a nasty burn.