Boundaries Crossed will be a great set, and the addition of Vileplume to the format has caused some eyebrows to be raised. It looks like a good card on paper, but can it be played the right way and fit into the format? That's what I'm trying to figure out, and I think that with this list it would fit right in as a dangerous competitor.
Pokemon
3-1-3 Vileplume (ND)
2 Terrakion (NV)
1 Mewtwo EX
1 Shaymin EX
3 Emolga
2 Sableye
2 Rayquaza (DV)
T/S/S
3 Cheren
3 N
2 Skyla
3 Catcher
3 Rare Candy
3 Pokemon Communication
3 Heavy Ball
3 Switch
2 Energy Switch
Energy
2 Blend GRPD
4 Blend WLFM
2 Prism
2 Fighting
2 Electric
Pokemon
3-1-3 Vileplume (ND)
2 Terrakion (NV)
1 Mewtwo EX
1 Shaymin EX
3 Emolga
2 Sableye
2 Rayquaza (DV)
T/S/S
3 Cheren
3 N
2 Skyla
3 Catcher
3 Rare Candy
3 Pokemon Communication
3 Heavy Ball
3 Switch
2 Energy Switch
Energy
2 Blend GRPD
4 Blend WLFM
2 Prism
2 Fighting
2 Electric
Strategy: The strategy is fairly basic. Get a Vileplume on the field to make all weaknesses 4x and then tear through the metagame decks with Mewtwo, Terrakion or Zekrom. Mewtwo is there to counter, of course, Mewtwo. Terrakion counters Darkrai, and Zekrom counters the new additions in ND; Keldeo and Blastoise. Shaymin EX is also fit in as a late game tech if I'm down in prizes. Rayquaza is there to counter all the ever present Dragon decks and for a possible donk. Shaymin is just a grass type version of Emolga which I think would be fun to run.
Please tell me if there are any great cards I missed! I would love to have a counter to everything big right now but I can't think of every played deck at once. I will consider all suggestions, so don't by shy if there is a truly great card I am missing.