[@Sophrus] I have no objections to Unyat, just as long as it's not op, but I've always been in the habit of playing by the power level, so if someone jacks the power level on Echo, a lot of his latent abilities may just suddenly burst forth to break their power trip. 

[@dragonmancer] The GM left so this is player run now. You get to make the story with the others here, so you can try and introduce your twist at some point with them and anyone that likes it can go along with it and anyone that doesn't will probably just leave/ignore you. The point of this is to develope characters not really have a deep plot. Deep plots may form as a result, but just throw a character in there and have fun with them. As for William I can't see any problem with him. As long as this secret power isn't world bending then he seems fine with me.