Boomdust Bomb

A three-inch diameter cast iron sphere filled with boomdust and fitted with a fuse. Boomdust is an explosive powder used in cannons, grenades, and sapping charges. It is highly controlled, and only produced in a single FTC-controlled factory on Cottenhorn.

When you take the Attack action, you can forgo one attack to light the fuse and throw the bomb at a point within 30 feet. At the start of your next turn it explodes, forcing creatures within a 15 foot radius of that point to succeed on a DC 15 Dexterity save or take 21 (6d6) fire damage, or half as much on a failed save. This consumes the grenade.