Thank you for your patience! Though for the record, we're even now still laughing about the Magneto bit.

We're fine with you proceeding as outlined here, since we think you've covered all your bases finding a way to limit this newfound power. He would likely not be subject to the consequences other characters might face since it's not something that would necessarily be detected, but just let us know if you feel like you'd rather do something other than the two scenarios you presented here.