I would make a safer list, including Sableye(Who could Donk/Set up) and Octillery from PL incase of Dialga G X probably something along the lines of:
Pokemon: 14
4 Sableye SF
4 Mew Prime
2 Remoraid PL
2 Octillery PL
2 Rhyperior LV X ( hard crush)
T/S/S: 19
4 Judge
1 Luxury Ball
3 Bebe's Search
3 Palmers Contribution
4 Collectors
4 Seekers
Energy: 27
4 Rescue Energies
4 Cyclone Energies
4 Special Dark Energies
4 Darkness
11 Psychic
You will be doing 100-150 every turn guaranteed. Cyclone Energy is good in this deck seeing as you won't need to really be attaching any energy since everything aside from Mew's initial attack is free. You could save it to get by a cheap prize they might throw up at you.