I've had a lot of success with this deck (as I'm sure many people on ladder have) this season.
It has a pretty good match up against what other people are playing at the moment.
And... Tavroddddd is a busted card.
I've seen people playing Auric Sentry a fair amount. I haven't tried it yet but I imagine it's a good card to swap in if you are facing a lot of aggro.
I also haven't seen anyone running throne warden's since Tavrod came out but I like them. I haven't tried the deck w/o them though so fiddle around and see what you like.
Happy laddering and trust in the Broker.