I love this deck as I really don't like using ex's (I think they are a cop out and VERY LITTLE game and deck building skill is needed to win), I don't even like using the trio of pokemon that do outrage (reshiram/zekrom/kyurem, another no-skill strategy).
Anyway I've been using a similar deck online and had lots of success. I usually don't donk on my 2nd turn, I just think it works well vs poison/spec condition decks, and vs most EXs (they take 3-4 energies to attack and by that time you have 2-3 slashing strikes in equaling 120-180 dmg!) I was able to destroy a 4x Cobalion EX deck, a KeldeoEX/Blastoise, an all fire VictiniEX/ReshiramEX, and squeaked by vs a mewtwoEX/Darkrai (hammertime). So it works!!
I was wondering where this tournament was because I'm always looking for non-EX games!??!
And kudos for using an excellent and original deck and hopefully you had some luck in your tourney!