I played this deck at the first cities of the season 4 weeks ago. The Pokemon line was this:
4 Mew
3-2-2 Plume
1 Bellossum
2 Victini
2 Vanilluxe
2 Unfezant
2 Emolga
1 Relicanth
I had extremely high hopes for the deck, but I flipped quad tails so many times and started with Oddish or Victini so often it became extremely frustrating. Since Mew is so fragile, usually 1 or 2 will go down before you can attack even once, and by that time, if 1 or 2 Mews are Prized, you are done for. It auto-losses to Chandy, Cobalion, and has a hard time vs the field if you dont get T1 See Off. I went 3-3 and 2-3 with it on two separate events and tore it apart. I have moved on to straight Vanilluxe and like it 100x better.