A storm of immortal frost engulfs a 200-foot-radius sphere centered on a point you can see. Each creature must make a Constitution saving throw or be encased in magical ice for the duration. While frozen, a creature is paralyzed and immune to all damage, but cannot be targeted or affected by anything else. Frozen creatures are considered unconscious and can only be freed by Dispel Magic or a successful Wisdom saving throw at the end of their turns. At the end of the spell, all ice shatters in a blast dealing 10d10 Cold damage to all creatures within the zone.