I think that we should be able to change stats between our wizards. For example...
I love my life wizard Sierra Rose, but I don't want to have to level her up to level 90 like with my other character.
My other wizard, Rebecca Shadowflame, is lvl 90, but I don't use her much anymore because I'm tired of her school, name, and looks.
I've always wished that Sierra could switch stats with Rebecca, so that I could have a lvl 90 life wizard with an awesome name, awesome looks, and an awesome school.
This feature could be available in the character selection screen, and cost 5000-10000 crowns, depending on the difference between the wizard's levels.
Now, the only issue I have noticed is the change between schools, and learning different spells. I think the two wizards would keep their original schools, but reset all learnt spells. Therefore, they would have to learn their spells again, and would recieve all spent training points back.