A horn of blasting that has been reinforced with bardic magic. It can be used by a bard as a spell casting focus.
5 times per long rest you can use an action to speak the horn's command word and then blow the horn, which emits a thunderous blast in a 30-foot cone that is audible 600 feet away. Each creature in the cone must make a DC 15 Constitution saving throw. On a failed save, a creature takes 5d6 thunder damage and is deafened for 1 minute. On a successful save, a creature takes half as much damage and isn't deafened. Creatures and objects made of glass or crystal have disadvantage on the saving throw and take 10d6 thunder damage instead of 5d6.
When using the horn's magic the user must make a DC10 wisdom save, on a failed save the horn's magic is consumed and it explodes. The explosion deals 2d6 fire damage per consumed charge to all creatures within 10 feet and breaks the horn. The horn can be repaired by using the mending cantrip, however its magic won't be restored until the following day.
Notes: Damage: Thunder, Deafened, requires attunement by a bard, Damage, Debuff, Combat
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