You can check out my Ninja Box deck for expanded in the Deck Garage. I did not successfully found an answer yet for the standard format but maybe Shining Mew could help. The big factor is that Prism energy is not available for Standard and relying only on the 4 Rainbow energies hurt. The deck list i posted does not include Marshadow only because i do not have it yet but it fits the deck perfectly. I guess you could get a few ideas from what i have posted if you are looking to play around Jolteon/Glaceon/Marshadow. The deck is an easy 65%+ win rate from my experience.