Defiance Combrei Aggro Gauntlet 21:0

This has been by far the best performing defiance gauntlet deck for me.
While there might be even more consistent decks out there, this one can give you incredibly fast wind and is able to kill the AI on turn 5.

I started of with Camat's Face Combrei and optimized it for Gauntlet. The biggest changes are probably Winchest Merchant + Knight-Chancellor Siraf+ Valkyrie Enforcer which are all Gauntlet staples. They take some of the explosiveness from the archetype, but they add the even more needed consistency.

Even though the Merchants are kind of Anti Tempo, the toolbox they provide is definitely worth it. On top of that they mitigate the risk of flooding and which can be a real threat in Gauntlet. In constructed it might not matter if you loose a game to flooding/draught maybe every six games, but in Gauntlet it definitely does. That's why I added Seek Power and Knight-Chancellor Siraf.

Some of the Gauntlet decks are basically removal/stall piles and Siraf can turn those games around. On top of that he is a great defensive unit, which really helps against some of the agressive decks and bosses.

Valkyrie Enforcer is one of those cards you are basically never unhappy to see - it especially helps against Permafrost, Ice Sprite and the small utility creatures which are quite common for the AI to play.

After some tweaking I finally had a 21:0 run in Masters Gauntlet, which qualifies the deck for posting it here.

Happy Grinding.

Edit: Some notes - the AI will assume Empower doesn't happen so they will most likely ingnore your units / attack you and only leave some 1/1 or similar behind. You can really take this to your advantage and create some great blowouts. It's especially nasty if you attack with multiple Empower units and Hojan, Crownbreaker. If the blocks Hojan + Another Unit and you can cast Finest Hour Hojan to create a double blowout.