Wondrous item, uncommon
This ivory flute carved with motifs of rats has a tone that is soft and pleasant but deeply irritating to rodents. Playing the flute as an action attracts any rodents, such as rats, giant rats, or swarms of rats, which can hear the music. Once they arrive in your location, the rodents attack all creatures within 30 feet of you. If you have proficiency with flutes and use an action on each of your turns to continue playing the flute, the rats will not attack you or your allies. If you stop playing the flute, the rodents retreat after 1d4 + 1 rounds.