OGC:Ammunition, Fire Arrow/Bolt (20) (5e Equipment)
From D&D Wiki
|This material is published under the OGL|
Cost: 2 gp.
Weight: 2-3 lb.
Fire arrows are simply arrows or bolts with a tube of gunpowder attached that, when lit, explode once they hit the target. Such arrows or bolts have disadvantage on the attack roll but do 2d4 fire damage in addition to the normal damage to a target if they hit. Unfortunately, such weapons are very vulnerable to the weather and may not ignite if they’re wet (DM’s discretion). Fire arrows and bolts have double the normal cost for their type.