Chill to the Bone

You cause a creeping chill to overcome your target, making it hard for them to move. One creature you can see in range makes a Constitution saving throw, taking 4d6 cold damage and having their speed set to 0 for the duration on a failure, or half damage and having their speed halved until the end of their next turn on a success.   At the end of each of the target’s turns, it can repeat the saving throw, ending the effect on a success.   At Higher Levels. When you cast this spell using a higher level spell slot, increase the damage by 1d6 for each spell level above its base level.