I can't speak German.
But before this gets locked for lack of pictures, run Eviolite Chansey/Leftovers Blissey over Xatu, thereby decreasing your weakness to Dark and Ghost, (as you have three that are weak to it). They can still provide you the Wish support, and are much, much better walls. Also, why are you running Sunny Day on Magnezone? Run it Choice Specs with four diverse SpA moves.