1112766:I appreciate you going into more detail regarding the deck. I must've missed that you posted when I was lurking in this forum or I would've replied sooner.
Do you feel that going into a different class would offer better opportunities to cure some of the decks ailments? Going with skumm not only gives you skumm #5 but also let's you play heartless. Although this may just be a cute trick rather than a definitive help it is an option. Rogue can give you some answers to regailia, although narrow (demolish).
I have no idea if this would send the deck in the wrong direction but it is an option and I'm curious as to what you think about it.
The theoretical power of adding Stab in the Dark and Victimize is, admittedly, pretty tempting, while Heartless is cute. On the other side of the equation, however, I'm really not sure how I feel about the net gain compared to what I lose.
Functionally speaking, I lose pretty much all of the deck's oomph by giving up Priest. Taste is absolutely huge and plays both sides of the fields very effectively. Vampiric Tendrils is a great bit of discard and helps you buy time. Anguish is phenomenal Weldon killing. Horrify serves nicely as anti-Dimzier tech. Raiment gives the deck some endgame staying power. Disperse Magic is absolutely phenomenal, as can be Mists properly played. Not to mention that Koozar's flip is quite handy.
Overall, I really don't think the deck would really benefit from the switch in block? I'd have to think more on it.