You cause the moisture in the air around your target to freeze, attempting to freeze you target as well. The target must make a Constitution saving throw or take 4d8 cold damage and becomes paralyzed until the end of your next turn as they become encased in brittle ice. The first time the target paralyzed from this spell takes a critical hit, the effect ends and they are no longer paralyzed. On a successful save, the target only takes half damage and is not paralyzed. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd.