I asked Lugia for it before I went with it, i would have modified. And taking so long to respond....
I will edit. I might just nake him able to learn the moves without that thing. let me edit.

And by going unique, I at least made it that my guy had something else. Who said the arm could not connect to pokemons if the old technologie was advanced enough. I know it was a bit touchy there but it was a part that was going to make him unique more then anything. I didn't think op cause it would be damaged already, not fully functionnal, just the attacks could be used with it.

But I removed it completely from app and make it that he will learn steel type moves, though it would be his strange genetics instead. There.