Format?
If I could have my dream format is would include:
LC on, best promos, and 3 key new promos double gust, focus band and cleffa.
I think LC offers a lot to the card pool with cards like bill (oracle w/o bill?), muk, zapados to name a few. Cleffa is, well,er, cleffa. Double gust would get real interesting with the one retreat per turn rule. And focus band makes low hp 1 stage pokes more playable in an environment where big hitting and/or high HP pokes reign supreme.