Lock of Guilt (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V, S M (an amount of iron or steel equal to 30 gold)|
|Duration:||Up to 24 hours|
A heavy lock that extends out of the victim and locks shut around their very heart and soul. As an action, you may stir up guilty feelings in your target and use this lock on those who have guilt in their hearts. Choose one target in a 10-foot radius, forcing them to make a Wisdom saving throw. Should they fail, the lock will attach to their heart and soul, giving them disadvantage on all charisma checks/saves and reducing their movement speed by half. Should they succeed, the lock will fail to attach and the target will be safe from further attacks by the lock for 24 hours. The lock is invisible to everyone except you. Once the lock attaches, it will not detach until the remaining hours have passed or you dismiss it as a bonus action.
At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the time the lock remains on the victim increases by 24 hours for every 3 levels above third.