Twitch

Choose a spot within range, each creature within a 20 ft cube begins to feel their body start to shake. Each creature must make a Constitution saving throw. On a failed save the creature begins to uncontrollably twitch for the duration. While the spell is in effect, the creature has disadvantage on all attack rolls for the duration. In addition, the target has disadvantage on all Dexterity checks and Tool checks.

This spell has no effect against constructs.