Basically, I use the Nest Balls to get Mew on the bench and switch it to active then use dimension valley for no energy cost for encounter use encounter and get Lunala Prism and then free retreat cost to lunala attatch psychic or mystery energy and use first attack to get energy to lunala prism...
This is a non-GX or EX-deck.
Energy 20
x20 Fighting Energy
Trainers 26
x2 Rare Candy SM
x2 Switch SM
x2 N XYFC
x2 Fisherman XYBT
x1 Wide Lens XYRS
x1 Skyla XYBT
x1 Winona XYRS
x1 Hau SM
x3 Professors Letter Gen
x1 Town Map XYBT
x2 Energy Retrieval SM
x1 Max Revive Evo
x2 Pokeball SM
x2 Team...
Energy 20
Psychic Energy 20x
Mystery Energy XYPF x1
Double Colorless Energy SM x1
Trainer 24
Shana XYFC x2
Acerola SMBS x1
Nest Ball SM x2
Timer Ball SM x2
Altar of the Moon SMGR x1
Mallow SMGR x1
Energy Retrieval SM x2
Hard Charm XY x2
Rare Candy SM x1
Enhanced Hammer SMGR x2
Professor...