I guess he can't change his hair colour then ;)?

And how long does it take him to shift? Like a few minutes for someone the same size/up to an hour for significant mass changes? And where does the mass come from? Is he super hungry when he shifts?

Otherwise, sounds good to me. Definitely someone Seraphine would be interested in having on the payroll.

[@Weird Tales]

Oh yeah, where does the metal come from? What fuels it. Other than that good details. Just fix the metal balls (lol) and formatting :)