>>23134656I think it looks pretty majestic. Not so menacing though I admit. The link between the three is sorta sky, land and underground though. You have Yveltal in the air, Xerneas on the land and Zygarde is deep underground in a cave. I believe it fits that Nordic Yggdrasil thing.
But saying that, what about Xerneas and Yveltal's designs are shared characteristics? Because other than them looking like they don't have a mouth (I know Yveltal does from its animations) and the relative XYZ letter incorporated into their design, that's all I can see. Since there's nothing really shared between Xerneas and Yveltal I don't see how that can be considered a negative for Zygarde if none of the trio have it.