# Gunpowder (powder horn) *Explosive* - **Cost**: 35 gp - **Weight**: 2.0 lbs. Setting fire to a powder horn full of Gunpowder causes it to explode. When a powder horn explodes, each creature in a 10-foot-radius [Sphere [Area of Effect]](sphere-area-of-effect-xphb.md) centered on the powder horn makes a DC 12 Dexterity saving throw, taking 10 (`3d6`) Fire damage on a failed save or half as much damage on a successful one. *Source: Dungeon Master's Guide (2024) p. 73*