I seem to be on a roll with modifying my decks lately. Here's the latest decklist for this one. Most of the changes came from all the suggestions I've gotten here.
Pokemon (19):
3 Ralts (SS)
3 Kirlia (1 SS, 2 Life Drain)
2 Gardevoir
1 Chansey ex
3 Eevee (SS)
3 Espeon (SS)
2 Mewtwo ex
2 Wobbuffet (SS)
Trainers (24):
2 Switch
3 Potion
3 Moo-Moo Milk
2 Oracle
2 Fisherman
2 Juggler
3 Copycat
1 Town Volunteers
2 Energy Switch
2 Rare Candy
2 Star Piece
Energy (17):
13 Psychic Energy
4 Boost Energy
Strategy and Notes: Strategy is still more or less the same as previous versions. Deck focus is Gardevoir. Main attackers are Gardevoir (late game) and Espeon (anytime). Wobbuffet and Mewtwo ex are backup hitters, and Chansey ex is a combination healer and cleaner. Kirlia, and even Ralts can be attackers in a pinch, but are meant to mainly be on the bench.
Trainers are there for more or less the usual reasons. Lots of small healing because of Gardevoir, and plenty of draw power. I managed to keep this one to 10 Supporters, and still have a pretty good Trainer engine, I think -- no easy thing in E-on.
Star Piece was an interesting suggestion. It's another combo with Gardevoir. I can Psy Shadow onto a Benched Ralts/Kirlia/Eevee, attach Star Piece, and between turns, evolve them from the deck. Too bad I couldn't do that with Wynaut even if I had it.
Am I still considering any changes? Yes. For one, I'm considering switching from Fisherman to Energy Restore, to further lower my Supporter count, though I'm not exactly leaning heavily towards making this change. After all, if a Gardevoir with a lot of Energy gets KO'd, that Energy needs to get out of the discard pile. Besides, 10 Supporters is pretty good already. Of course, with Energy Restore, I can discard Energy with Juggler and get it right back in the same turn. I'm considering dropping the Mewtwo ex's for Wynauts, for a little added search. Again, though, I'm not sure -- it does significantly decrease my offense, but it also lowers my ex count from 3 to 1.