The
Rating Battle Season 10 details have been revealed on the Pokémon Global Link website. Season 10 will take place from
May 12th, 2015 at 01:00 AM until July 14th, 2015 at 12:59 AM. Rating Battle Season 10 features Single Inverse Battles where attacks that used to be super effective are not very effective and vice versa. All Pokémon above Level 50 are leveled down to Level 50 for the duration of the battle.
Details of the Rating Battle Season 10 have also been added to our content database.
Sources:
http://3ds.pokemon-gl.com/information/4714208a-62dd-4de8-85ee-6162f46b57c2 and
http://3ds.pokemon-gl.com/battle/oras/110/regulation/