Article: New Pokémon "Magiana" Revealed for Upcoming Movie

Some people are suspecting a new type for Magearana and reasoning behind that is Slyveon, but when Jirachi was revealed we didn't know that poke's type either.

I want to say that list is fake. I saw list in a similar fashion before.
Thank you Dawn for showing it to me :)

Pinkie-Dawn said:

But if it's Gen 7, then the new Zygarde forms would be rendered pointless. It would still be Gen 6 if the next main game focuses largely on Zygarde and not a new set of legendaries. Remember that since Gen 4, Game Freak has been making pattern-broken twists on their third versions (Gen 4 - legendary forms, Gen 5 - direct sequels, Gen 6 - second set of new Pokemon?).

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Well all that I can say is that Unown got new forms in Gen 3. I doubt that Gen 7 would focus on Zygarde before the post-game story.
Now as for Magearna, I can see her as a Steel/Fairy type with Lightningrod. I can see why people would say that she is connected to Diancie, buut...

Zygarde 100% = Golurk
Milotic = Dragonair
Sylveon = Victini
Zygarde 10% = Houndoom
Etc
Nevertheless, I am happy that my Meloetta has gone Steampunk