New Updates:

• Only legitimate versions of Pokémon X or Pokémon Y can be used in Play! Pokémon tournaments
• Players may use Pokémon from the Central Kalos Pokédex from #001 to #150, Coastal Kalos Pokédex from #001 to #153, or Mountain Kalos Pokédex from #001 to #147.
• Pokémon are allowed to Mega Evolve.
• Pokémon above Level 50 are permitted, but they are auto-leveled down to 50 for the duration of battle
• Kalos Native: Pokémon used in the Standard Format must be native to the Kalos region in Pokémon X or Pokémon Y. A native Pokémon is a Pokémon that is hatched or caught in Pokémon X or Pokémon Y. Pokémon that have been transferred to Pokémon X or Pokémon Y via Pokémon Bank or Poké Transporter are not native.