Blood Wound

You begin to make the blood of those around you boil, causing excrutiating pain in an aura with a 15-foot radius. Until the spell ends, the aura moves with you, centered on you. When a creature enters the aura for the first time in a turn or starts its turn there, the creature must succeed on a Constitution saving throw or take 3d6 necrotic damage and be incapacitated until the end of its next turn. A creature that succeeds on its saving throw takes half as much damage and isn't incapacitated.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each spell slot above 4th.