| Text | You can use an action to blow this horn to cast one of the following spells from it: Arms of Hadar, Fog Cloud, Gust of Wind, or Web. If the spell requires a saving throw, the spell save DC is 13.
Once the horn has been used to cast a spell, it can't be used to cast that spell again until the next dawn.
If you have proficiency with a given musical instrument, you can add your proficiency bonus to any ability checks you make to play music with the instrument.
A bard can use a musical instrument as a spellcasting focus, substituting it for any material component that does not list a cost.
Each type of musical instrument requires a separate proficiency.
Proficiency with a musical instrument indicates you are familiar with the techniques used to play it. You also have knowledge of some songs commonly performed with that instrument.
History: Your expertise aids you in recalling lore related to your instrument.
Performance: Your ability to put on a good show is improved when you incorporate an instrument into your act.
Compose a Tune: As part of a long rest, you can compose a new tune and lyrics for your instrument. You might use this ability to impress a noble or spread scandalous rumors with a catchy tune.
Musical Instrument:
Activity | DC
Identify a tune | 10
Improvise a tune | 20
Source: Descent into the Lost Caverns of Tsojcanth p. 14,
Player's Handbook p. 154,
Xanathar's Guide of Everything p. 83 |