Name: Mightyena
Move: Psychic Fangs
Reasons: I think Mightyena should learn Psychic Fangs because Mightyena is classified as the Bite Pokemon in its Pokedex entries. Also, Mightyena is capable of learning a variety of biting moves: Bite, Crunch, the Elemental Fangs, and Poison Fang. Another reason is that there are other Pokemon that are not Psychic-type that are capable of learning Psychic Fangs. Examples of these Pokemon include Arcanine, Aerodactyl, Manectric, Luxray, Stoutland, Tyrantrum, all Lycanroc forms, and Boltund.