I unlocked Bwizzard and Night Knight after I used Scummoner to achieve Godhood. However, I didn't get the medals for unlocking Bwizzard and Night Knight, nor did I get the medal for achieving Godhood. I only got the Godhood achievement after I played through and achieved it a second time.
A similar issue occurred when I first began to play the game some time after it was published. I had to unlock Bow Pro (the achievement) by completing the requirements twice.
Other than those issues with the medals, this is a pretty neat and enjoyable game.