Well... I think having Apocanan and war bringer is probably a bad idea? In the case you get both of those out wouldn't you be giving your opp's allies +2 Atk?
I read your shaman deck list earlier in this day...I think i like that more than this. To be honest I am ONLY planning on doing the DMF...It was suggested to me by a fellow travelor to try Oblivion.
I built a deck last night that looks similar to your deck (It has to look similr ;))
I got my butt HANDED to me by a fallen-star warrior. I didn't even have a chance...
In my opinion rush is going to own oblivion; we just don't have enough quick cards.