Chill Blade

You create a shard of ice and two ghostly, skeletal hands that grasp it.  You fling the ice shard at one creature within range.  Make a ranged spell attack against the target.  On a hit, the target takes 1d10 piercing damage.  Hit or miss, the ghostly hands disperse into a necrotic cloud.  The target and each creature within 5 feet of it must succeed on a Constitution saving throw or take 2d6 necrotic damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the necrotic damage increases by 1d6 for each slot level above 1st.