Arcane Burst

You manifest a bolt of energy and launch it at one creature within range. Make a ranged spell attack against the target. On a hit the target takes 1d12 force damage. The target and each creature within a 10-foot sphere must make a dexterity saving throw.  A target takes 3d4 force damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher the cone effect's damage increases by 1d12 for each slot level above 1st.