Singleton Deck Help


I’ve got a League Cup or whatever coming up at the end of the month, and bright me thought it’d be a great idea to build a singleton deck for the event. So with the restriction of only allowed to have 1 of any non-basic energy card, what should go into the list? Right now I’m thinking the following:
N, DCE, Trainer’s Mail, Sycamore, Ultra Ball, Wailord EX, and maybe Fury Belt.
I’ll be borrowing the cards from a friend, so price isn’t a factor. Thanks for any help!


Make sure that you have a lot of cards that search for specific Pokémon