Eruption of Winter

An eruption of ice sprouts from the Earth in the form of jagged spikes, impaling all creatures in its path. Each creature in a 40-feet-radius sphere must make a Constitution saving throw or take 10d6 cold damage and 5d6 piercing damage on a failed save, but on a successful throw the damage is halved.

The spell damages objects in the area and freezes them.

At level 16, 18 and 20 the cold damage of Eruption Winter increases by 1d6.