While this deck is a shadow from where it originally started, I think there is still practical use for Angels and Demons while playing a good mid-range game. The real beauty behind this deck is the combo of Sram's Expertise followed by Collective Effort, Rhonas the Indomitable, or Nissa while teasing with the other small/token creatures.
Main Deck Explained
Like I said: it's all been changed. It all began with the new Avacyn and Brisela ... Because all those lovely Angels apparently went horribly bad, I figured the original title (Dirty Angels) suited the new theme behind Angels.
As rotation happened and other things moved around, my focus shifted from the Angels theme to a more token-centric theme. I still run Avacyn, mostly because she scares everyone so much when she get's played ... it's kind of fun to watch that suppressed panicked look on their faces when it happens. I don't know why people don't play Westvale ... at all. I get that it costs to make him flip ... but hell: a 9/7 flying creature with lifelink and indestructible?! Sure, he doesn't have hexproof which would make it completely broken, but by the time I ever get him out, most of that control stuff has run it's course and they don't got nothin left to put him down. Love that demon.
Game Play
I used to have everything broken down as to which creatures/spells/etc I would use and justify each of them. That sucked trying to keep up with, so it's gone now. Let me just say it this way instead:
Turn 1 - Land and then either Thraben Inspector, Oath of Nissa, or Implement of Ferocity.
Turn 2 - Land and then hopefully, Channeler Initiate. I honestly think this is one of the most beneficial cards of the new set, particularly with a deck like this: early game, put the counters on her then use em up, later in the game, drop her out and place the counters on a plant or servo and you just got a 3/4 creature for 2 Mana, beautiful. I also see her as an excellent option for flipping Avacyn.
Turn 3 - Get that woman out! Nissa is the best, then throw out a friggin plant.
Turn 4 - Sram's Expertise and then Collective Effort for free (and use it's escalate cost with those shiny new servo creatures you just put out) then -2 with Nissa for 3x 3/3 creatures, a destroyed enchantment, and/or creature with power greater than 4 all for the low price of 4 mana ... and so on, and so on.
Everything else is pretty self-explanatory: you're basically taking all these really tiny creatures and pumping them up into giant monsters. Fatal Push is the biggest problem for this deck, but honestly, by the time your opponent realizes they need to use it, you've got too many 3/3 (or better) creatures on the board that 1 or 2 Pushes ain't gonna cut it. If the board isn't controlled early in the game, this deck becomes a real problem for your opponent, real quick. I added both the and the gods from Amonkhet for now. After a little playtesting I'm sure I'll swing one way more than the other and drop one to have 2x of the same color. Cast Out was also added since I'm confidant it'll be seeing plenty of main-board action from here on out.
I've archived comments since they mostly had suggestions for a more heavily themed Angels deck.
The Plus One was me ... because I think I'm awesome ... feel free to add to my hubris and please comment if you have suggestions/questions/or just want to me to jump over and +1 your awesome deck too!