Not sure about some of the stuff they're doing here. I don't get why frost has that effect instead of what is now the rain effect, those feel like big changes to both that totally flip what you normally expect from the card. Not having fog double up on the same unit power feels like a bit much as well, lining up numbers to hit multiple units was the most satisfying part of playing weather.
Frost was always way too good in basically every situation, so that getting changed, sure. But I also don't like the additional changes to frost based cards...I have no idea why they would hit the Hound now without even seeing how this changes things, and Caranthir...nope.