I think that AEther Vial with Collected Company and Hardened Scales is a bit much - 2 Path to Exile is very light on the interaction POV, and that's gonna come to bite you in the butt, because there are plenty of other aggro decks that are faster than you (therefore, you should pick 2 of the 3). Speaking of speed, I see that you're not running the primary accelerator in Harabaz Druid - you don't have to go for 4, but I'd strongly recommend at least 2. It will let you trim your land count to 20 (since you can pump out mana at a moment's notice), and it opens the door to slapping down a Turn 3 Collected Company, as well as have access to color-fixing, which is always important in a 5C deck that still hopes to cast Kazandu Blademaster.

I have a few more quibbles with regards to the Allies you've chosen (though I have to give you props on some neat tech in Abzan Falconer) - Kalastria Healer's effect is very minor (and its body is weak), and Drana, Liberator of Malakir both fails the Bolt test and fails to have an effect on its own before dying. I'd rather see the aforementioned Harabaz Druid, or Lantern Scout if you feel you need more offense.

As far as the sideboard goes, Return to the Ranks is awesome (but again, would be better with ramp), but I don't feel that Ephemeral Shields or March from the Tomb are good cards. You're also skimping pretty hard on graveyard hate at a point in time where that's pretty important (bugs the hell out of Grixis Control, for one), so I would recommend some Relic of Progenitus. Those are my thoughts for now.

Hey rothgar13, were you the dude who commented on modern nexus? Your thoughts seem similar to what the guy said there.

rothgar13 When I built the deck, I made it after merfolk and boggles. At 20 lands, it is necessary to have AEther Vial. Not to mention it provides color fixing. It also lets you to put more creatures out quicker, allowing for a more consistent turn 4 win.

Hardened Scales provides another way to consistently get to the turn 4 win and get's you out of bolt range. It makes the other creature decks really struggle with blocking also. I had boggles in mind when I put hardened scales in here. With boggles, or any combo, you need quite a bit of redundancy. Initially I didn't like having Bojuka Brigand or Jwari Shapeshifter in there, but they actually fit perfectly in the build. They become an awesome card because of the synnergy.

Harabaz Druid is a bit of tricky card. I've played with it quite a bit and found that I wanted an aggressive creature instead of a 0/1 mana dork. I'd be willing to playtest it as a one of and take out the 21st land. Also, if you look at the mana, there really isn't a problem casting Kazandu Blademaster.

I can take credit for coming up with the tech for Hardened Scales but Abzan Falconer was something I saw the Oklahoma dude trying.

I replaced Ondu Cleric with Kalastria Healer to be more aggressive. I have similar thoughts on this one as with you, and I'd be willing to playtest this evening running two Harabaz Druids this evening on MODO to see how they do.
Drana, Liberator of Malakir does fail that particular test, but I felt that at the modest chance of it hitting as a flyer, and as a one of, is at least worth playtesting.

I definitely agree with you that Return to the Ranks would be much better with ramp, and sells your argument for Harabaz Druid even better.

March from the Tomb may be problematic too and I can see your point. I think I will drop that, as with the lantern person.

I actually have a very high winning rate against graveyard recursion. At least the one with the creatures, but the ones with all the control I can see the usefulness of the card. That may end up going in the side.

Ephemeral Shields is an interesting card, and I think has potential. While at the same time, if I don't have mana open of untapped creatures, it can be a problem. Vines of Vastwood may be better or Emerge Unscathed. The last daily I played in a week or two ago, I mainboarded Return to the Ranks and Spellskite, taking the que from the elves deck and placed 3-1.

As for the Path to Exile, I made the deck after boggles, that only needs a couple of removals, which I find 2 to work pretty good for the type of dedicated agro deck allies is.

Yeah, I'm the same guy who commented on ModernNexus.

I'm a huge fan of Hardened Scales (my own Ally brew runs it), and I can definitely understand the appeal of running both AEther Vial and Collected Company because of all of the acceleration involved, I do think that given the lack of creatures with sneaky effects like bouncing or counters, you can get away with not running Vial, especially if you have ramp. Drana, Liberator of Malakir may be worth a quick test given that you have Hardened Scales, though - if you do run it, I'd appreciate hearing back on how it did.

As far as Ephemeral Shields goes... My main bone to pick with it is that a single-target indestructible isn't all that great. It doesn't same you from bounce or exiling, or help you evade blockers (unlike protection), and it doesn't pull double duty as disruption (unlike counterspells). It can be cast for free, sure, but after about 2-3 turns, holding 1-2 mana open shouldn't be a huge problem for you anyway.

Sweet, thx for taking some time to look at the deck. You're welcome to look at the others. Who knows, maybe it will help you brew some. I got an interesting Kamakaze Allies deck brewing.

I just played against grixis delver and the druid did work! I think I would rather have Return to the Ranks and maybe one Emerge Unscathed in the main in the removal heavy meta on MODO.

Yeah, I think Ephemeral Shields is out unfortunately, and I'm gonna keep messing with druid to see how he does.