Somberwald Sage could be a great 3 drop and then you could run Oblivion Ring for control and if you still want a little more control you could use Intrepid Hero to help against fatties.

Awesome suggestions, guys! I'm still unsure how useful Cathedral of War will be IRL, but there's been a few occasions when play-testing here that I've been able to swing for 4 on turn two by going Turn 1 Forest into card:Avacyn's Pilgrim, then Turn 2 dropping a Cathedral of War and luckily having a Rancor to drop on the Pilgrim. And, the mana doesn't seem to suffer from having it in there. But, I've been wondering about putting in two Cavern of Souls for "Beasts", and seeing how that works as well.

And, I think Somberwald Sage would be a great idea! But, depending on what I find myself up against at FNM's, definitely would like to see how Intrepid Hero fares.

I would like to get rid of Garruk, Primal Hunter since it's the only card that goes against my "only Innistrad, Dark Ascension, Avacyn Restored, and M13" rule in preparation for October.

Scratch that. Looks like Garruk, Primal Hunter is actually in M13, so I'm good! lol I've been using the ones from M12, and totally forgot he was reprinted for M13. >.<

Why not try Garruk Relentless  ^Flip He's great too, and he's from innistrad to boot!

I think Garruk, Primal Hunter works better with card:Garruk's Packleader on the battlefield, allowing to gain a 3/3 Beast every turn and drawing a card from the Packleader's ability.

Relentless is way better. I can see you like packleader, but you said you want this doing well in fnms so I'm going to have to tell you that its horrible. 5cmc is the top of the curve for pretty much all decks in standard. A 5cmc card needs to come into the field doing something awesome. The 3 cards that opitomize this are Zealous Conscripts Thragtusk and Wolfir Silverheart . All of these 5cmc creatures come into the game doing something game-changing(and are powerhouses in it of themselves). Packleader sits around and could maybe draw you a card if you were to already have garruk out the turn before. Why do you only have 2 of your main creature? I wouldn't go with primal huntbeast either. You need more restoration angels. Scorned Villager will flip maybe twice per fnm. Arbor Elf would be better. I would also up your rancor count to at least 3. Also I would think about Fiend Hunter . If your unaware of it, it plus cloudshift is an amazing combo. It permanently exiles one creature and does its ability again to exile another til its dead. I've never seen blessings of nature perform better than Increasing Savagery . I think I'm done vomitting out help now. Go check out my deck U/G Savaged Stalker please!

I'm trying a similar deck. So far its performed decently in testing. I haven't been using the card:Conjurer's Closet though, has it been pivotal in getting it to work? I do have 4 Restoration Angel , so maybe that reduces the dependance. Get as many as you can, they make this deck run.

Consider Borderland Ranger while it isnt a huge card on its own, pulling the land from your deck to improve your draws is never a bad thing. I would definitely include Oblivion Ring as they are game-winning. I'm still torn between the need for two or three at this stage.

While it's a bit on the high-drop side, Acidic Slime is very useful if you score an early ramp into it. I've had turn 3 slime, EOT 4 Angel, then Cloudshift targeting lands. It's devastating, especially to delver, since it tends to run a lower land count at 18 or so. A couple of unlucky draws with no mana and its game. It's also good to have for killing off enemy Oblivion Ring , Birthing Pod and card:Runechanter's Pike

I'm looking at adding Fiend Hunter as well, looks very promising. I'm still weighing the kill potential of Champion of Lambholt . A couple of blinks turn your board into a monster that can sweep past for the win, but I'm not sure if what I'd take out would be worth the addtion at this stage. Give it a go!

Last suggestion is look at using Rancor instead of Prey Upon . I've been running 3, and they allow big beats from walking over, or Angels flying through for 5. Since they return to your hand, blinking doesnt diminish their use at all!

Hope I helped a bit, let me know how it goes!