[S/M] Poke Bank Won't Let Me Transfer My Trevenant!?

[Noodles]

You cant transfer pokemon from Gen 7 to Gen 6.You can only transfer from 6 to 7.So if you want that treevenat with the tutor move you're going to have to breed it gen 6 and then transfer it up to gen 7.All pokemon that cant be transfer down to gen 6 have a white outlining in pokebank