Circle of Death

D&D 2014 spell: Circle of Death. Source: Player's Handbook (2014). level 6, school Necromancy, casting time 1 action, range 150 feet, duration Instantaneous

A sphere of negative energy ripples out in a 60-foot-radius sphere from a point within range. Each creature in that area must make a Constitution saving throw. A target takes 8d6 necrotic damage on a failed save, or half as much damage on a successful one.

At Higher Levels

At Higher Levels When you cast this spell using a spell slot of 7th level or higher, the damage increases by 8d6 for each slot level above 6th.

Source: Player's Handbook (2014), p. 221 - Licenses and attribution