Your eyes turn black and your hair floats on its end as you sing a haunting song that echoes through the air around you. Every creature you choose in a 100ft sphere must make a constitution saving throw. On a failed saving throw the creature becomes stunned until their next turn and takes 1d6 necrotic damage at the beginning of their turn until the spell has ended. On a successful save, the target is not stunned although still takes 1d6 damage at the beginning of their turn until the spell has ended.

The spell is ongoing for up to 10 minutes, it otherwise stops when the caster ends the incantation or is forcibly stopped. No other verbal spells can be made while the spell is ongoing, however the caster can stop to speak in between singing. 

Wither and Decay: If the spell has been ongoing for 3 consecutive rounds on the casters turn, all creatures affected take an additional 1d12 permanent necrotic damage. 

Necrotic Ward: All melee attacks made against the caster inflict 1d6 necrotic damage to the attacker. 

At higher levels: When casting at higher levels add an additional 1d6 necrotic damage per level after 4th. Does not affect Wither and Decay.