In a fantasy world steeped in magic, gunpowder has emerged as a force to be reckoned with. Cannon and muskets have become commonplace on the battlefield; and far from replacing magic, have synergized with it to create deadly enchanted weapons.
Assuming a magical system like that of Pathfinder (please, no delving into the Rules As Written) how can magic plausibly turn mundane cannons into devastating weapons?
- American Revolutionary War era technology. (Late 18th, early 19th century)
- Culture has no bearing. Assume full and unconditional acceptance of magic.
- Pervasive and commonplace magic.
- Must be militarily practical: repeatable, cheap, portable, reliable, etc