Hey, nice deck. I have been playing a lot of Mardu and will have my deck posted shortly. I will likely be trying to do PT this season, as my deck has yet to lose at any FNM or tourn I have gone to this season.With that being said! I lost a lot during testing and still only have 3 Rabblemasters (got mine for $2 before he was worth a lot, never found others that cheap).

That being said my deck is a little more control than yours, it is still midrange, but has more removal, planeswalkers, and burn elements.

I am not sure quite how much of a budget you are on but I'll make a few recommendations:

Drop 2x Grim Haruspex the draw is nice and it does help even out versus the draw given from Master of the Feast, but he is a little too slow for what your deck seems to want to do, which is bash people's faces in.

In his place try adding: 1-2x Iroas, God of Victory. He makes even your weenies difficult to block and lets you charge all in without fear. When he becomes a creature he is quite a threat as well.I'd add 2 for consistency, but if you are on a budget 1 would suffice.

Following the same line of [u]Thought[/u] I'd remove 2x Thoughtseize and add 2 x Hordeling Outburst. This will make your aggro that much better by: ramping Goblin Rabblemaster, being chump blockers, sac meat, ect.

I'd keep Thoughtseize in the side board for any decks heavy on removal or any combo decks (Jeskai) with specific key cards you need to eliminate.

Cut out the 4x Gods Willing. They are nice, but they do not protect against sac, aoe, ect. Instead add 1 more Athreos, God of Passage in order to more consistently threaten your creatures being recast. This also helps with card advantage late game, so you can rely on your board presence instead of top decking a Gods Willing.

Also, for some more aggro/control help try adding 1-2x Mogis, God of Slaughter. He is like Sorin's ult each turn or he deals 2 damage. Mix that with Athreos and all your weenies and people will have many difficult choice, some may even sac that pesky Nyx-Fleece Ram if you can make the situation bad enough. Abzan can only cast so many Siege Rhino to negate your Athreos.

If you can get your hands on 2 more Goblin Rabblemaster do it. If not add the Wingmate Roc. He helps with life, is 2 flyers for 5 mana (nearly 100% of the time in a deck like this) and will help with your White Devotion.

This was the first deck I tested against that gave me a little bit of trouble so I feel you deserved some input.

Good Luck. +1

Awesome Comment, Thanks for all of the great suggestions! I have a lot of things to think about now. I'll be taking out the Grim Haruspex for sure now. But I'm hesitant to take out the Thoughtseize and even more so the Gods Willing. That being said you've given me some awesome things to consider putting in their places so maybe you're right. Thanks for the comment and the +1, you're awesome!

DAMN THIS DECK IS HARD TO BEAT!!!!! :P

NightingGaleA1 What deck are you play testing against it with? I'd like to check yours out!

Blue white heroic

Hey Keith. While at the PTQ I had issues with token decks due to not siding in Bile Blight.Had I sided Bile Blight I would have been able to win 2 more of my matches.

Upon facing such an experience with a similar deck I suggest you add 2-3x Bile Blight to your sideboard.

Thanks for the suggestion Friagne. If you look there are already 2 Bile Blight in my sideboard. Thanks for the comment and the +1 though, you rock! :)