What are the highest level Pokémon in X & Y?

Question

I would really like to battle the highest level/most challenging trainer in Pokémon X
So.. who's the strongest trainer you have found? I know Dianthas Gardevoir is level 68 and Zygarde is level 70. That was the question ^^

Answer 1

For as far as I've seen the game the champion is the stongest trainer in Kalos. Furthermore Zygrade is the strongest in-game Pokémon (like you already said).

Comments

Infernape, please stop adding pointless junk to your answers like "hey [username]" and "hope i helped you". It clutters up the answer. Thanks.

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There's also Mewtwo (lv70)

Answer 2

Actually, the highest level wild Pokemon are indeed Zygarde and Mewtwo (70).
EDIT: The Kanto bird trio is lvl 70 too (Thank you SparkyBlaziken :) )
But the actual highest level Pokemon trainer is Diantha, when you rematch her in the battle chateau, if you wrote a 'Black writ of challenge'. Her Pokemon will be lvl 80. (If you didn't they will just be 60)

Source: http://www.serebii.net/xy/battlechateau.shtml

Comments

Also the Kanto  bird trio are level 70