In a link trade I got a shiny diancie.
Type: Rock Fairy
Sp. Atk: 328
Sp. Def: 336
Came in a cherish ball.
Moves: Diamond Storm, Moonblast, Psyshock, Hidden Power
Ability: Clear Body
Characteristic: Capable of taking hits
Ribbons: Alola Champion Ribbon, Battle Tree Great Ribbon
Description: A fateful encounter seems to have led it across space and time to reach you from the Kalos region.
I'm able to deposit on the GTS, does not appear as special Pokemon.
I think it may be hacked, sad thing is I traded my legit Shiny Shaymin for it.