Artillery. This cannon uses gunpowder to propel anti-infantry shells. Before it can be fired, the Pounder must be loaded and aimed. It takes one action to load the weapon. To fire the Pounder a creature must spend an action to operate it. The Pounder fires at the beginning of the operating creature’s next turn, unless the creature is no longer operating it.
When the Pounder fires, roll a 20-sided dice. On a roll between 1-3 the cannon misfires and does not fire this turn.
16 Pound shell. Each creature in a 20 foot sphere centered on a point within 200 feet must make a DC 16 Dexterity saving throw. A target takes 21 (6d6) bludgeoning and 21 (6d6) fire damage on a failed save, or half as much damage on a successful one.