The funny thing is this has actually happened a few times
First time was a mix of Bumblebee and Starscream though, second to my knowledge OP did exactly that

Farming also becomes a nightmare in this cuz…yknow, but in case you need a spot, the area you start the act in has a bench at the very top left of the map has a batch of enemies you can kill pretty consistently with the default silk spell and some of the tools

Plas disguising himself as his friend’s gear would be such a fun story tool

Like imagine Batman’s trapped and the villain has his belt, only for Plas’ fist to emerge and just clock them in the jaw

No cuz then you’re flying not swimming

It seems cool but I feel like i would’ve preferred a different approach focused more on the DCU as a whole; going back to just Batman stuff isnt literally a downgrade, but it feels like one in a way for me