I like where you're going with this, but what about:
- 1 Hysteria
- 1 Thrive in the Shadows
+ 1 Seek Guidance
+ 1 Mo'arg Forgefiend
The quest is good at drawing out your cards, too, and then you've got the added win-con at the end, just in case. This deck already looks pretty "questy". What do you think?
Questline is extremely rare to complete. This is just old school control priest type depending on card generation. Also this is much better against aggro.