Yeah, did that, was met with an Arena filled with Crystal, Fight and Toxic types.
That's why I'm not sure anymore about what to do. I'll probably spend some time leveling some Toxic types as they're usually more resilient to other types. And I'll probably breed a good Saku (I have a great one with all 45+ except... SPATK obviously) as it's a Wind-Grass type with a Mental attack so I guess it can be a great tool overall.
Do you know where to get that ? I know in the patchnote they mention items that prevent TV gains to one stat (so that sounded a bit meh), didn't hear about something that completely erases TVs.