Debilitate

You unleash a wave of necrotic energy toward a creature you can see within range that renders its body useless.

The target takes 4d6 necrotic damage, and must make a Constitution saving throw. On a failure, its Strength and Dexterity scores become 1, its movement speed is reduced to 0, and cannot gain any benefits to its speed. An affected creature cannot make weapon attacks, use material components for spells, use or interact with objects, or even perform simple tasks without assistance.

At the end of every 30 days, the target can repeat its saving throw, ending the effect on itself on a success. 

If the Greater Restoration, Heal, or Wish spells target the creature, this spell ends.