You can inflict crippling agony on one creature you can see within range. The target must succeed on a Constitution saving throw or become crippled with horrific pain. Whenever the target moves more than half of its speed or takes any action, it takes 1d6 necrotic damage.

The target can repeat the saving throw, ending the spell on a success.

Classes : Warlock

Subclasses : Necromancy Mage