Talk:Mystery Gift (PTD2)/@comment-17158087-20130918133453/@comment-3078792-20130918152603

You are never guaranteed to get a shiny egg, the stone only helps increase the chances of it being shiny, if you use the stone and both parents are shiny you have the best chance for the egg to be shony but it is still only around 10-13% chance, not 100% sure on the numbers but something like that.