So, this is a fun deck i love to use in Wild, a Mill Druid. Your game plan is obviously to go into fatique. This is not an easy deck to play, so keep that in mind.
Mulligan for Zombie Chow, Innervate, Wrath and Deathlord. I wouldn't keep more than one Wrath or Innervate pretty much ever though. Keep boardclears against Hunter and other aggressive decks, you won't have a chance without atleast one. Trust me, you would be shocked to hear how often i have drawn over half of my deck and still drawn none of my four boardclears, costing me the game.
Innervate - Helpful card.
Naturalize - Save this for your opponents big guys.
Raven Idol - A very versatile card.
Wrath - Good removal. Don't go around drawing with it, you are supposed to win the fatique game.
Poison Seeds - Combos with Starfall for a one-sided board clear.
Swipe - Great boardclear
Druid of the Claw - Versatile as it can function as a removal or a good taunt.
Starfall - A versatile card able to be used as a boardclear by itself, with Poison Seeds or as single target removal.
Moonglade Portal - Healing with a body
Zombie Chow - Good early game minion.
Bloodmage Thalnos - Practically your only draw in the deck. Spell Damage scales exceptionally well with Swipe.
Brann Bronzebeard: Combo with Coldlight Oracles.
Coldlight Oracle: For use in the late game. Also can be used for fishing if you desperately need some card.
Deathlord: Very helpful against aggro, and thins your opponents deck against control.
Elise Starseeker: For fun.
Dirty Rat: Kind of similar to Deathlord. If your opponent isn't an aggressive one, i do not recommend playing this without being prepared to Naturalize a Ragnaros or Ysera or something like that. In general against control decks, i would rather save the rat for a combo with Seeds and Starfall.
Emperor Thaurissan: There isn't anything in particular you want to hit with this. Just helpful in general. Dirty Rat, Starfall or Poison Seeds is always good to discount though so they can be comboed.
Reno Jackson: Lategame heal.
Yogg-Saron, Hope's End: Still a pretty good card after the nerf.
Soggoth the Slitherer: Hard to get through. Very underrated card.
Other possible additions to the deck:
Grove Tender - Doesn't do much other than you can use it to fish for something you need.
Feral Rage - A cheaper and stronger heal than Moonglade Portal. Doesn't give you a body though.
Those two cards can also be used to replace a legendary you are missing. A second copy of a Zombie Chow or Raven Idol are good replacements as well. I imagine not that many people have Soggoth for example. Thalnos should be replaced with a Kobold Geomancer though.
Why no Jade Idol?
Someone's gonna ask this sometime, so i will answer it here. Idol doesn't actually help you win any match-ups. It's absolutely worthless against aggressive decks, more so than any card in the deck and control decks you already destroy. There's no need to sacrifice a deck slot for fatique prevention. The only match-up where it could possibly be useful is against Jade Druid, but even that i believe you would lose, because they are going to have a huge headstart in summoning big golems. The best use for Jade Idol would be to turn the copies of it into extra legendaries with Golden Monkey, and that honestly is not enough of a reason to include a card especially one that weakens the match-up against aggressive decks.