[quote=@Natsucooldude]
alright, I'll put some crunch on it.

Mezmer is a masterwork enchanted dagger. Upon a succesfull attack, the user may as a free action, attempt to befuddle the mind of their target. This effect is a wisdom save at DC 18. Succesful save ends. Affected creatures gain disadvantage on [b]all attack rolls[/b]. This enchantment cannot affect more than one creature at once. It can be used five times per 24 hours. If a target succesfully makes a save against the effect, they cannot be affected again for the next 24 hours.
[/quote]

Only to user of the Dagger because the creature affected reacts to the Dagger's magic (to put flavour in it).