well as said the classes are only "guideline" you can built up your character the way you want. As for the combinaison and without spoiling you get the first henchmen early enough to allow yourself to pick the combinaison you want !!

"-Oh that's fullmoon, cuttie cuttie sheep
-baaaaaaOOOOORGH"
***Sprotch***

Weresheeps will rule the world (At least one night every 29 days)