Encircling Frost Spears

You create a ring of ice spears. When a monster comes in range they make a Dex saving throw of 15. On hit the target takes 2d10 piercing damage, the shard then explodes. The target must succeed on a Dexterity saving throw or take 3d6 cold damage.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the cold damage increases by 1d6 for each slot level above 1st.