What would be the best playbook for someone who has a mistrustful relationship with their power source — maybe even to the point of arguing with it, like Blue Beetle from Young Justice or Deathlok or even Elric? It seems like sort of a Doomed/Nova cross, except that the hero could spend a lot of time arguing with his suit (or sword or whatever) about the right way to be a hero.
There’s a neat mechanic in the Faceless playbook from Apocalypse World that lets the character talk to their mask and get advice, maybe I should write a playbook for this.
I’d go Protege, where the sentient power source is your mentor.
That’s a neat idea.
Elegant!
Legacy would also work, for the same reasons, if there’s going to be a lot of narrative focus on the background of the power source
If the power source is able and willing to disobey the wielder, that could be a Nova, and if it “takes over” the user, that could be a Janus. Otherwise, ditto what Matt Morton and Greg Trent said.
Alternately..if the power source is potentially very dangerous then you could also go with a Doomed. Eventually the power of the hardware will take you over and do terrible things with you…and a successful transition to a new playbook would be overcoming its original programming.