well right when the egg is made and in the daycare, the shininess,nature, and ability are all chosen already. so if you were to save the game before you recive the egg, then hatch it like 10 times, without saving, its always going to be the same, so chances are it wasnt RNG in the first place. Or the guy RNG but then screwed up =/
the only thing that changes in the IVs of the egg
You welcome, btw i've a doubt, i know that you can RNG for hatch shiny pokemons, and i know that all the characteristics of a pokemon are plasmed when the egg appear and cannot change they, right?
Well some time ago i recive a egg that contains a shiny Zangoose (i want the shiny in egg because i'm little picky and like my pokemons with my OT), well the egg was made via RNG and when i recive and hatch, it was a shiny zangoose but after that, he become normal again. Do you know what can happen?