I need an Ally deck for MTG!?

Avoid Red and Black if you want consistent wins (though I personally find White/Black Allies among the most fun). The following is probably the most powerful Ally deck, though, largely due to it's speed and versatility.

4 Hada Freeblade

4 Ondu Clric

4 Kazandu Blademaster

3 Kabira Evangel

4 Halimar Excavator

3 Jwari Shapeshifter

3 Seagate Loremaster

4 Haribaz Druid

3 Turntimber Ranger

4 Oblivion Ring

2 Rite of Replication

22 land

-2 Emeria, the Sky Ruin (They'll cancel each other out so more than one at a time is pointless.) -1 Marshall's Anthem (the Emeria's do the same thing. Though I would be againt Honor on the pure in a mono-white allies deck) Then sideboard: All your sideboard cards hate red or black. Firewalkers are enough to kick red in the nuts, side in some hate on other decks.