KFT:

Lesse here. The biggest problem I see with the deck is that Galactic shuts it down if it runs Dialga or Palkia Lock.

Dialga can Deafen Lock you as soon as turn one, leaving you unable to retrieve your Rhyperior with SSU, or to accelerate it's evolution with BTS.

Palkia Lock means your Poke Powers, such as Sacrifice, Set-Up, Cosmic Power, and, msot importantly, Earth Fissure, will be Power SPrayed or sopped by multiple Mesprit.

The final nail in the coffin would be that Kingdra takes advantage of all the discarding to potentially THKO Regigigas Lv. X.

Galactic and Kingdra decks are the biggest archetypes in the format, so, personally, I'd suggest something else for regionals. But, I get payed to help decks, not to crush dreams, so here we go.

Pokemon

4-4-4 Rhyperior (DP)

2-2  Gyarados (SF)

2-2 Regigigas LV X (Basic regi w/ body) (SF)

2-2 Claydol (GE)

1 Uxie (LA)

1 Unown G (GE)

Gyarados, although a nice attacker is rarely going to be your starter, and his attack is too flippy for my taste.

-2 Magikarp

-2 Gyarados

also, reduce the Gigas Lv. X count by one.

-1 Regigigas Lv. X

Now, add another Basic Gigas so you can start with it earlier then not.

+1 Regigigas

Speaking of Machamp, drop one of each member of the Rhyperior line to make room for a 1-0-1 Machamp (SF) line.

-1 Rhyhorn

-1 Rhydon

-1 Rhyperior

+1 Machop

+1 Machamp

Trainers, Supporters, and Stadiums

4 Bebe

3 Roseanne

1 Lux. Ball

4 Broken Time Space

4 Time Space Distortion

4 Super Scoop Up

2 Night Maintenance

2 Warp Point

Reduce the BTS by two since, it may prove to be a dead draw in late games..

-2 Broken Time-Space

Add in two Premier Balls to find Gigas from the deck or discard.

+2 Premier Ball

For Machamp, and because nothing is funner then a turn one Rhyperior to mess up your opponent, add in two Rare Candies.

+2 Rare Candy.

If you honestly have four TSDs, Kudos, but , for the sake of ease to get, I'd drop the count down to three.

-1 Time-Space Distortion

Energy

1 Metal

2 Water

5 Fighting

Since I got rid of Gyarados, drop the Water energy count to 1 and add in four Rainbow Energy and another Fighting Energy, since you have a better chance of drawing energy for Gigas, and you can use Roseanne too.

-1 Water

+4 Rainbow Energy

+1 Fighting Energy

The New List

3-3-3 Rhyperior (DP)

3-1 Regigigas LV X (SF) (Non-Holo Basic)

2-2 Claydol (GE)

1-0-1 Machamp (SF)

1 Uxie (LA)

1 Unown G (GE)

4 Bebe

3 Roseanne

1 Lux. Ball

2 Broken Time Space

3 Time Space Distortion

4 Super Scoop Up

2 Night Maintenance

2 Warp Point

2 Premier Ball

1 Metal

1 Water

6 Fighting

4 rainbow

Now, you can take care of threats like G decks with Machamp, as well as get a faster Gigas up. Hope this works for you and good luck in your regionals.

~KFT

Here ya go Eevee.

Eevee:

Ok! ^^ Thanks KFT! I really appreciate it. I tend to agree with what KFT said on your deck. In the current metagame we've been seeing you may run into quit a few problems. My advice is to flip through your binder one last time before regionals. Either way tho, Good luck! Sorry I couldn't be of some more help... ^^; I really wish my state had tournaments that were closer. T.T

Catch 'ya Later! ;D ~Eevee (And KFT!)