Mightyena travel and act as a pack in the wild. The memory of its life in the wild compels the Pokémon to obey only those Trainers that it recognizes to possess superior skill. It chases down prey in a pack of around ten. They defeat foes with perfectly coordinated teamwork. It will always obey the commands of a skilled Trainer. Its behavior arises from its living in packs in ancient times.
Pokédex entry #262
Mightyena in Pokémon GO
It's possible to hatch Mightyena from an egg?
No, Mightyena can't be hatched.
Which are Mightyena’s strengths and weaknesses?
Mightyena is a dark type Pokémon. dark type pokémons