Fractured in Alterac Valley Cards List & Guide
The hero power every turn method with CThun is still the way to go.
I typically get tokens, you can hero power and refresh turn 1. So you get 3 chances total (initial 3 minions, refresh if needed, turn 2 refresh).
Like above poster, I won't pick CThun if there aren't many token around.
Then I favor divine shield units and divine shield girls.