|A massive axe that looks like it was carved from a glacier, or possibly calved from one. It leaves ice crystals in its wake as it swings through the air.|
Using the Frostbite can be more than a little irritating, it's noisy while fighting and constantly stirs up more foes. OTOH it provides one level of Cold resistance, flying ability and occasionally freezing clouds without any spell hunger costs.
Frostbite was added in 0.18.