Corrupting influence

The caster's eyes glow as they place their hands together and a loud church bell rings, up to three creatures within range must roll a DC 15 wisdom saving throw. Upon a failure, they take 2d8 necrotic damage, and until the caster loses concentration, the creatures are under their control.

At higher levels:

The spell can be improved at higher spell levels. 

• At 4th level, the spell deals 1d8 more damage, and the save DC increases by 2.
• At 5th level, the spell deals 2d8 more damage, and the save DC increases by 1.
• At 6th level, the spell deals 3d8 more damage, and the save DC increases by 2.
• At 7th level, the spell deals 4d8 more damage, and the save DC increases by 1.
• At 9th level, the spell deals 5d8 more damage, and the save DC increases by 3.