Hearthpwn

Fatigue deck was never as good as now. Reno Jackson allows to reset HP, Brann Bronzebeard adds additional mill speed, and Raven Idol can get you another Naturalize. Additional full removal (Mulch) is good thing too.

You shouldn't show your oracles, brann and naturalize too early. This is your lategame setup, let opponent draw his cards by his own. Try to get early board control and clean enemy threats effectively.

It has only two x2: Naturalize and Coldlight Oracle. Keep an eye on those two when you think about dropping Reno (you should have seen both cards for it to work).

Matchups:

Despite Reno, this deck isn't good against aggro and face decks. In this case, you should avoid giving them cards as long as possible.

It's best against control or combo decks.
Against control, you burn/remove their wincons and put them on fatugue really fast, as they can't lay enough pressure on you.
Against combo, you can burn out combo pieces, and combo decks tend to draw much cards on themselves, thus speed up their own doom.

Update:

It is confirmed that Poison Seeds now work with Explosive Sheep. Thus, now we have t6 full AoE board wipe.

Update2:

Sadly, Poison Seeds combo no longer works now.