Voon Vondle's Magic Belt

A creature you see within range that is wearing trousers has their belt magically loosened causing them to fall down. The creature must make a dexterity saving throw or be knocked prone by tripping on their trousers. A creature that attempts to move before pulling up their trousers must make a dexterity saving throw or be knocked prone again.

At level 4, the creature must make an intimidation check or be stunned until they pull up their trousers.