So I'm really liking the Roaring Skies Shedinja. I was wondering if using a Mew EX and Dimension Valley would be a viable, competitive deck for tournaments. Then I could use Shedinja's attack for free and do potentially enough damage to one hit anything. Mew is frail but if I used multiple, I could keep one Mew EX on the bench and drop some rainbow energies on it to get some damage counters on it or something. While also using Mr. Mime and something to take out opposing Garbodor's since that would be one thing that'd wreck me. Does this idea for a deck sound viable? What is a potential deck list that could utilize this idea well?