mages will be basically useless until level 5-6, which I assume would be halfway through the game.
They'll probably do a few "house rules" to help them if so.
As an aside, I wonder what the 10 level cap means for multiclassing. 5/5 max (or 7/3, etc)? Or will you be able to go beyond ten max combinded levels? If so, everyone will be multiclassing to 10/10.