The conversation between human and AI assistant.
Why does metamorpho have a purple arm?
Fascinating! One last question, is there anyone in the DC Universe that can rival Metamorpho's powers?
There are a few superheroes who come close to matching Metamorpho's powers, such as Plastic Man, Martian Manhunter, and Elongated Man. But Metamorpho's unique combination of shape-shifting and element control make him a formidable opponent.