When I played the Winter boss in the Temple of Seasons, I found that my frosty friend spell did not take damage from most of his attacks, this happened a while ago so I don't know which attack's in particular but I know most of them missed because I saw him walk through the attacks and he didn't take damage from any except for a few and one of the attacks that misses is the snowstorm attack (the one where a whole bunch of snow flies in a straight line across the screen).