I have been playing a homemade demon deck (it kind of sucks but wins enough games). I usually end up winning in the midgame but i have had drawn out games though. One of my new favorite cards though is malganis. If i have it in my hand and can trigger voidcaller most other rush decks will concede right there. I also found that even if you are immune it still counts as you taking damage for things such as the gaze minion buff mechanic. Furthermore it makes cards like implosion rediculously powerful but if they can't take care of malganis instantly they are pretty much toast. Then if they do get rid of him and start getting me down old jarraxus comes out and completely crushes their spirit. I haven't had a chance to test it yet but i wonder if they word together since a warlock can sac jarraxus i would think malganis can give him +2/2.
Also for my control warrior i love the juggernaut although a lot of people don't. He's great for pushing the enemy over late game. Furthermore after a duel with a friend i found that his mine does not trigger ice block.