On the other hand, maybe I could wave the 10pt base cost for bonus powers and put a limit that you can't raise the rank higher than the power the power that you got the bonus power from. In your case Resist Electricity Can't be higher than your Electrical generation. So it gives the player a reason to take them. But a bonus power of Resist electricity is a lot different than a bonus power of Flight or Telekinesis.
This would lower your limitation to a Gd 10 rather than an Excellent 20.
This would lower your limitation to a Gd 10 rather than an Excellent 20.
