You create a 30 foot radius sphere where all motion is stopped, liquids will freeze and the fire will be extinguished. Creatures must make a Constitution saving throw. A target takes 7d6 Cold Damage on a fail and becomes paralyzed as they are frozen solid until the end of your next turn. On a success their movement speed is halved and take half as much damage. Terrain within the sphere becomes difficult terrain until the end of your next turn.