Fog

Does it work like invalidate?

I.e. if I cat fog after the enemy cast pod it won't cancel it?

Fog removes all stat changes.
If you a PoD was casted and you use Fog, it will cancel out the PoD.
I believe it works like Flush (talent). Someone please confirm this as I haven't had much practice with this skill.

I proposed for this to be a normal (physical) type weather.