Well, this is my first blog post, and I thought I'd start off with something that has been bugging me for quite a while: that the Zs are event-only.
But! I still wait in the hope that there will be other ways to get the Zs, and by that I mean breeding them.
However! There is a strong argument that, because both of the Zs have been shown to have basic movesets, they will not be breedable.
These are my ideas on this matter: