Ally Returns (Modern)

http://tappedout.net/mtg-decks/return-of-the-excavator-competitive-copy/

This is a competitive modern ally-combo build. It recently won a Star City Games IQ in Denton, and has won other large tournaments before (less than 40 people). This deck is meant to be played against the top tier decks in the format, and has undergone almost a year of testing and changes at this level. If you'd like to see more about the ally creature type in modern, you can check out my Ally Primer here: Modern Allies - Primer (Updated for BfZ!) To see proof of the deck's success, look here: http://sales.starcitygames.com//deckdatabase/displaydeck.php?DeckID=101340

This deck revolves around one card: Return to the Ranks, and its interaction with the various Allies from Zendikar. I'll get into more specific card choices below, but the basic plan is to mill yourself with Halimar Excavator, Hedron Crab, and Tracker's Instincts, until you get a critical amount of allies in your graveyard. (Usually around 5 with 2 Excavator triggers) Then casting Return to the Ranks, milling your opponent out in one fell swoop.

Without opponent interaction, this deck wins very consistently on turn 4, though can also win multiple ways on turn 3.