A nice addition would be the ability to look up characters by selecting a powerset / archetype / origin from the Account Overview page.
This way when you see that Energy Blast is set on 4 characters, clicking on the powerset would show which characters have this power and allow you to edit their profiles.
Something like:
SELECT * FROM characters WHERE primary_power = "energy blast" OR secondary_power = "energy blast" ORDER BY name ASC
The query will probably be much more complex and contain other variables, but I hope you understand the idea behind it.