To get to the mystery gift, its the 3rd box on the main menu and then on the mystery gift menu, press the first box after that press on the 2nd box
in the egg you have a random chance of getting one of these with the moves they know from the anime pokemon best wishes
they will have maximum IVs in attack, sp. attack and speed and natures that match
Dento's Yanappu lv.1
male
brave nature
moveset: bite, bullet seed, solarbeam and dig
Iris's Kibago lv.1
male
naive nature
moveset: scatch and dragon rage
Ash's Mamepato lv.1
female
Hardy nature
moveset: gust, quick attack and air cutter