Mutex doesn't seem like he's into battling as much as the others. He's more into playing around and showing off than fighting. I trained him so he would be strong enough to defend himself, just in case.

[Mutex floats over and peeks, and see another Klefki! He waves hi, via moving one of his keys.]

Falkner, huh? From the sound of it, the steel typing helps out in tanking his Pokemon's attacks.