Brilliant Blade

As part of the action used to cast this spell, you must make a melee attack with a weapon or unarmed strike against one creature within reach, otherwise the spell fails. On a hit, the target suffers the attack's normal effects, and it becomes sheathed in dim light until the end of your next turn. The target then cannot hide or become invisible until the spell ends. If the target willingly moves before then, it immediately takes 1d4 radiant damage, and the spell ends.

This spell's damage increases when you reach higher levels. At 5th level, the melee attack deals an extra 1d4 radiant damage to the target, and the damage the target takes for moving increases to 2d4. Both damage rolls increase by 1d4 at 11th level and 17th level.