MTJimmer- I have tested the deck against the following decks... as well as random rogue decks which I do not consider to be top tier and not viable against most decks. Here are the toughest decks it paired with.
Ampharos ( Turbo, and not turbo ) Ampharos/Ampharos EX with Wobbuffets. Turbo version uses Delcatty and runs TV Reporter and Juggler as its draw engine, using Aquapolis Mareep and DR Flaaffy to retrieve the energy to get a wickedly quick Ampharos EX set up, often turn 2. This match up was a joke actually. It used to go a bit below 40% VS Blaziken but it won one game out of 11, with that game where Blaziken never got set up. It had a lone Torchic and drew into a skitty. It had only drawn one TV Reporter but it did not yield anything useful. Again, its only loss was on a bad hand where it would have lost to any deck. Illegitamate loss in terms of testing.
Gardevoir EX( With or Without Wailord )- 12-0 vs Gardevoir normally, 11-2 vs Gardevoir Wailord. Normal Gardevoir is just too early as your Rayquaza locks them down any they cannot ever really get rebuilt. Once one Gardy is KOed I would Blaz EX the Gardevoir ( Not EX ) and than even if they Rare Candy to a gardy EX ( all must be done in one turn or else no Gardevoir will ever live past a Ralts ) they have 1 energy on it max. Its such an easy deck to just get the early KO on their offense and never let them formulate a comeback. Adding Wailord made it more difficult, as I lost a few games with slower starts. If he managed multiple Wailords and Wobbuffets in play early on, and I struggled to get set up, I would come back but sometimes lose in the long run even though Blaziken STILL made it a really close game. Please note that this is against what is considered the 2nd best deck in the format AND one that has double type advantage against it AND Wailord added SIMPLY to counter it.
Blaziken Varients- AGainst Blaziken Varients, using either Ninetales, Exeggcutor, Rayquaza, or Ray and Amphy, the deck MUTILIATES them. Ninetales has issues ever getting set up. It takes 6 energy to OHKO a Blaziken EX, and that cannot be achieved in one turn, so Blaziken EX just snuffs it on the bench whenever its getting built. In this match up, the Blaziken kills benched Rayquazas or Ninetales that pose threats first,t han go about picking off Blazikens ( Firestarter ) or Delcatty if they are not set up yet. Killing Ampharos against BAR is huge too. I played this match up TOO much to remember an exact record but more than 90% of the time I won them handily without any opposition. In mirror match, against another Blaziken EX deck, its ENTIRELY on who gets Blaziken EX up first. I am not joking AT ALL. Not 90% chance of winning. You WIN if you get set up with a Blaziken EX. Its sick. Its really overpowering when ONE CARD takes what was mirror match and 50-50 and makes it near 100%. Thats a major arguement in banning if ONE CARD makes a deck mutilate the former best deck in the format.
Salamence- 4-1. I didnt test TOO much vs this, and lost a game when I got a bad start, but Crystal Shard answered his Salamence well enough, and if you manage to establish any form of set up you can end up winning by dropping a Rayquaza and powering it in a turn. Blaziken EX's huge HP help a TON in this too, and if you can deal with the initial Salamence makes it impossible for them to really recover again.
Aggron Wailord- Laughable at best, Wailord used to pose a major threat in this match up but Blaziken EX gives you the perfect attacker to prevent them from snagging any prizes. It also lets you snuff Furret EARLY and cut off their whole draw power. After that, you can KO Wailmers, or even Aggron before it gets built. The bench kill utterly mutiliates this match up. I was 5-0 here, and stopped testing vs it because the results were so conclusive.
Kingdra EX- 7-1. Again, the lost game was a slow start that never saw the deck really get running. Ampharos and Rayquaza cover Kingdra, and Blaziken EX simply locks the game down once you get rid of any existing Kingdras. This proves how dominant the card is, as its another example of how the card makes the win AUTOMATIC if it is in play and your opponent is stuck in a stage of rebuilding. If they do not have the 150 HP Kingdra EX in play, you just kill anything before it gets powered. Bad match up for Kingdra.
Kabutops EX- 4-0. People suggested using Kabutops. I doubted its usefulness so I tested it anyways. Kabutops is too flippy and Ampharos EX if used smart wins the game on its own. Blaziken EX does not really come into play all too much here except to establish the lock down that wins any game no matter the match up.
I faced many other decks but did not lose any of the other games. I would also like to point out that in hundreds of games I dont think it lost more than 10 overall, and every one of them were games when it did not get set up. If the deck gets set up and does not have a bad unplayable hand, it has yet to have a challenge really. ( Mirror match not counted in this statement for obvious reasons ) I hope this is helpful in some way, ask more questions if you have them. If you want me to explain a certain match up or point more, just ask, I would be glad to explain it more.