Cold Snap

A pulse of supernatural cold detonates at a point you choose within range, flash-freezing the air and ground. Each creature in a 20-foot-radius sphere centered on that point must make a Constitution saving throw. A creature takes 8d8 cold damage on a failed save, or half as much damage on a successful one. On a failed save, a creature’s speed is reduced to 0 until the start of its next turn as frost locks its limbs in place.

Unsecured liquids in the area freeze instantly, and the ground becomes lightly iced until the start of your next turn, counting as difficult terrain.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.