VGC Rule Set: (From January 1st 2015)

Usable Games Pokémon Omega Ruby, Pokémon Alpha Sapphire
Battle Type: Double Battle
Pokémon Restrictions: National Pokédex.
Banned Pokémon: Mewtwo, Mew, Lugia, Ho-Oh, Celebi, Kyogre, Groudon, Rayquaza, Jirachi, Deoxys, Dialga, Palkia, Giratina, Phione, Manaphy, Darkrai, Shaymin, Arceus, Victini, Reshiram, Zekrom, Kyurem, Keldeo, Meloetta, Genesect, Xerneas, Yveltal, Zygarde, and Diancie, Pokémon not captured or hatched in X, Y, Omega Ruby & Alpha Sapphire
Banned Items: Soul Dew
Clauses: No same Pokémon, No same item
Players may only use Pokémon with items or moves obtained in Pokémon X, Y, Omega Ruby or Alpha Sapphire