You open a gate to the void under a creature, bringing forth a dark power. The target makes a Wisdom saving throw, taking 3d4 DARK damage, and potentially becoming

Frightened

The target gains no benefit from Cover from this saving throw.

Critical Success (+10). The target is unaffected.
Success. The target takes half damage and is Frightened until the end of its next turn.
Failure. The target takes full damage and is Frightened of you for 1 minute. At the end of each of its turns, the Frightened creature can repeat the saving throw. On a successful save, this effect ends.
Critical Failure (–10). As failure, except the damage is 1.5× and they receive 1 level of Exhaustion while they are Frightened.

At Higher Levels: Increase the damage by 1d4 for each spell level increase.