Another major thing about the Blastcatty vs. AmphyTrick situation that everyone is looking over is the weakness factor. So what if Manectric is saving the bench, Ampharos/Manectric are up top bringing the smackdown on your +30 weak Blastoise. Plus, the second Blastoise takes damage, he's locked, so you will have to have another one Well Digging on your bench. "Well, I'll just snipe with MY Manectric". No sir, mine is providing a wall as well. "Well, I'll get Delcatty to take you down and heal myself at the same time". From what I remember, Delcatty hurts itself, setting up ofr a lock without even attacking. Uh-oh, my Manectric got hit for 90 and was knocked out, and Delcatty healed itself :O. Ok, Ampharos, Energy Reflect, KO. I am done with my AmphyTrick rant now.
I think that Skuntank G/Toxicroak G will be pretty beast as well. Run Team Galactic's Base as your stadium, and all I can say is good game sir. The inventions will also help this deck out a lot too.
My major question is why is everyone saying that Dialga G lvX is the best thing since energy rain Blastoise? You send it up, it gets leveled, you do something fancy and bring it back to the bench, and then it's done. No attacks, just body lock. Well what if the deck you play doesn't use bodies? What if you start with Dialga? Now don't go bashing on me with the "There's only one, so my chances of starting with it are whatever/whatever". I ran one duskull in my deck at Nationals last year, and started with it 7 out of 8 rounds. Just saying tht techs that are specifically put in to counter a single deck can be extremely frustrating when you don't need it.
I myself also see Dustox and Blissey(not together) as possibilities. Dustox with the new Carnivine, and you have invincibility for most of the game. Running something else that throws in special conditions could work too. Running the new Blissey with the old Blissey is a very smart move as well. Discard and energy, heal your tank, and grab the energy back with Happy Chance.