>>25266460That's not how shiny-ness works
The only thing that correlates with shininess in Gen 6 is the PID, which is randomized when you receive a wondercard. All wondercards have an option to either a) never be shiny aka shiny-locked, b) always be shiny, or c) can be shiny aka not shiny-locked. These options will reroll the PID to keep it from being shiny if it rolls a shiny, and vice versa.
Most, if not all, of the Gen 6 events have been set to be either always, or never shiny. The "can be shiny" option hasn't been used except maybe once or twice in Japan, for an obscure event no one gives a shit about.