Description
In settings with gunpowder technology, ballista bolts can be fitted with fireworks that increase the range of the weapon and detonate shorty after being fired.
Actions
Firework Bolt
Ranged Weapon Attack:
+6 to hit, range 300/1200 ft., one target.
Hit:16 (3d10) piercing damage. Regardless of whether the attack hits, the firework bolt detonates. Each creature within 10ft of the target must make a DC 13 Dexterity saving throw, taking 10 (3d6) fire damage on a failure, or half as much on a success.