Thunderstone
thunderstone.jpg

You can throw this stone as a ranged attack with a range increment of 20 feet. When it strikes a hard surface (or is struck hard), it creates a deafening bang that is treated as a sonic attack. Each creature within a 10-foot-radius spread must make a DC 15 Fortitude save or be deafened for 1 hour. A deafened creature, in addition to the obvious effects, takes a –4 penalty on initiative and has a 20% chance to miscast and lose any spell with a verbal component that it tries to cast.

Since you don't need to hit a specific target, you can simply aim at a particular 5-foot square. Treat the target square as AC 5.

Crafting this item is a DC 25 Craft (alchemy) check.

Note: a thunderstone is a consumable

Range increment

Range increment is how far this weapon can be fired or thrown

Range Without far shot With far shot feat
20 ft. 0 0
40 ft. -2 -1
60 ft. -4 -2
80 ft. -6 -3
100 ft. -8 -4
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