XY NU Pokemon:

Aromatisse
Aurorus
Carbink
Dedenne
Dusknoir
Furfrou
Malamar
Meowstic
Pyroar
Sandslash
Slurpuff
Vivillon
Every NFE Pokemon from the sixth generation excluding Doublade are also allowed in this tournament (ex: Sliggoo, Fletchinder, Bunnelby)
Every BW NU Pokemon except the ones below:

Banlist:

Ampharos (Mega)
Banette (Mega)
Charizard (Mega)
Exploud (Boomburst, +10 base Special Defense)
Gardevoir (Mega, Fairy-type)
Granbull (Fairy-type)
Kangaskhan (Mega)
Mandibuzz (Defog, Overcoat buff, Knock Off buff)
Mawile (Mega)
Pinsir (Mega)
Sawk (Knock Off buff)
Scolipede (Speed Boost, +10 base Attack)
Zangoose (Knock Off buff)
All other BW RU and above Pokemon