|Conjures a cannonade of hail. The peculiarities of the magic involved in creating the hail prevent the spell from hitting monsters adjacent to the caster. Due to the strong impact and cutting edges a significant portion of its damage bypasses cold resistance. However, creatures made of pure ice are immune.|
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All creatures standing in those tiles take damage; this is partially composed of physical damage, so the spell will still injure enemies that are immune to cold. Enemies made entirely of ice (ice beasts, ice statues, and simulacra) will take no damage, however.
Hailstorm was added in 0.25.