Then I won 5 straight and then lost one, this time to an aggro hunter. That game was weird, because I finished the damn quest on TURN 2. That's right. Turn 2. But I didn't have preparation and couldn't play the quest for 3 more turns. If I had drawn Prep, I'd have won that one.
That's because it's not always correct to complete the quest as soon as you can, gotta learn that.