With this arbitraty 'power' system, how will you justify adding races that aren't shimigami? will they have more power starting out to make them on par with pre established characters, do those power ratings mean very little or none at all, or what? And what about new people, do they get a power boost to catch up to everyone else so they don't get left behind or do they start from ground zero? Both situations are unfair to veterans and new players alike.