"Well, I don't think you'd be able to run through a fire in this case, or that you'd need to. Wouldn't be starting a literal fire. Just trying to think of a way to isolate it and try and control it."

Don't mind him. Thinking out loud.

But he sees that look so he answers anyway.

"Before this arm, I had an arm that was given to me by the Galra. I could channel energy with it and use it to fight. I could weld metal with that arm."