>>52043154I use primarily use Ice types. Teambuilding for Ice fucking sucks because you can't have non-Ice types use Focus Sash or any strategy involving intentionally losing health (Life Orb, Reversal + Endure, Endeavor + Quick Attack, etc) because the drawback to Hail was so shit that you were locked in. This doesn't matter too much in a monotype format, but if you want to run the weather in VGC, you subsequently either have to intentionally weaken yourself every time you do not run an Ice type or run all of the Ice types you can which blows up in your face when Hail is replaced by Sun or Rain. Also, Ice-types have enough offensive glass cannons to not need the extra chip damage with the exception of Focus Sash, but Sashes are such a niche condition for Hail to be good that it's never worth running it.
In short, this makes Ice a much more well rounded type instead of either the glass-cannon type or the most conditional defensive type to exist. G-Lapras and A-Ninetales had a similar effect on Ice types, which is why it was so popular to use with other Ice types.