not rolled by the roulette · the Vaal gem version of Purity of Ice
Vaal Impurity of Ice is a Vaal skill gem, which grants both Vaal Impurity of Ice and Purity of Ice skills. The vaal skill temporarily grants the caster and nearby allies cold maximum cold resistance, immunity to chill and freeze, and causes their cold damage to ignore enemy cold resistance.
Purity of Fire got a vaal skill, so this one had to have one too.
Level requirement: 24.
The roulette doesn’t roll this gem, so its delivery options haven’t been worked out.