Chaotic will

You channel the chaotic powers of The Abyss to target a hostile creature within 10 feet. The target(s) must make a Charisma saving throw. The target(s) takes 5d10 necrotic damage and takes a -5 on their initiative on a failed save, on a successful save they take half damage and gain a +2 on their initiative.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d10,  or you can target an additional creature for each slot level above 4th.