The 10 event 'mons are yet to be announced, and will be available through DLC. They will not exist on a player's game if they have not had the event. There is a special pokemon "Outmon" which is displayed when a person is against a Pokemon that they have not got on their game.
Nobody is impressed when you just rehash old info --- Currently awaiting: Lunar Knights 2, Pikmin 3, XY, WW HD, LR:FFXIII, X, LoZ U, FFXV, KHIII Don't start unbelieving! Never do not feel your feelings!