Well, thanks to a lot of help from Otaku, I've taken a whole new spin on the Sceptile idea -- it's Sceptile tech! It even beat Otaku's Ampharos deck in its first playtest match -- although, admittedly, he got a horrible setup while I got a fabulous one.
Pokemon (20):
4 Treecko (R/S #76)
3 Grovyle (2 R/S #32, 1 R/S #31)
4 Sceptile (2 Holo, 2 Non-Holo)*
2 Wynaut
2 Wobbuffet (SS)
3 Zapdos (AQ)
2 Suicune (AQ)
Trainers (20):
3 Copycat
2 Professor Oak's Research
4 Pokemon Nurse
1 Town Volunteers
2 Switch
2 Warp Point
2 Rare Candy
2 Power Charge
1 Ancient Ruins
1 Mirage Stadium
Energy (20):
12 Grass Energy
4 Rainbow Energy
4 Multi Energy
*May become all non-holo, depending on how playtesting goes.
Strategy: Still an Energy Trans deck, but instead of Sharpedo as main hitter, I've got a few different Basics. Because of the annoying Poke-Bodies on Suicune and Zapdos, I don't even try to use Lightning or Water Energy -- instead, I use Rainbow and Multi. I have the basic Sceptile/Nurse combo going for healing.
If I can, I start by using Wynaut to search out my various Pokemon, then evolve to 'ffet when I'm set up -- at least a non-holo Sceptile and some hitters. Suicune's anti-Fire, Zapdos is just a good hitter (although, as I write this, I find myself considering switching to Moltres to counter Steel), and 'ffet is obviously anti-Psy and anti-ex.