Horn of Blasting

You can use an action to blow the horn, which
emits a 30-foot-cone blast that is audible 600ft
away. DC 15 CON save or take 5d6 thunder dmg
and be deafened for 1 min. On a pass, take half &
not deafened. Creatures/objects made of glass/
crystal have disadv and take 10d6 thunder dmg.
Each use of the horn's magic has a 20% chance
of causing the horn to explode. The explosion
deals 10d6 fire damage to the blower & destroys
the horn.