Hail

Hail is a humanoid sentient Crystal floating on a massive cloud found in Fragilis. He can be seen in Frigid Upland.

Strategy
Hail will emit harmful hail in 3 ways. The first way is to summon a giant snowball at you and the only way to evade it is by running away. The second way is to emit some good sized snowballs that you could reflect by using a slingshot that you own, and it will harm Hail's cloud. The third way is to summon a hailstorm you have to evade.