I was thinking yesterday as I played through the hobbit quests with my outlands deck that there is no reason why one could not use the weaker Bilbo as one of your exhausted heroes! Maybe all you have already thought of this but the implications are almost limitless!
For example, common cause actually becomes worth while. you can exhaust Bilbo with his amazing states of 1-1-1-3 and ready Gandalf with 3-3-3-5! And the only cost is a card that is free and only cost its value as a draw!
use your own imagination, there are so many cards that require the exhausting of a hero!
Idk, maybe I'm pointing out the obvious but this seems pretty good to me.

