Dragonshot Catapult

A dragonshot catapult appears much like a typical catapult bearing an elaborate rendition of a dragon’s head at the end of the throwing arm. Instead of loading normal shot or stone, the operator can choose to load a gemstone of the appropriate type and value listed below. Activating the firing mechanism hurls the gemstone as if it were a stone appropriately sized for the catapult. When the gemstone strikes the ground, it explodes in a burst of energy. All nearby creatures and objects take damage as detailed below.

White: All within 5 feet of the target square take 2d6 points of cold damage (Reflex DC 14 half). The gemstone used must be a pearl worth at least 50 gp.

Black: All within 10 feet of the target square take 4d4 points of acid damage (Reflex DC 14 half). The gemstone used must be a piece of obsidian worth at least 100 gp.

Green: All within 15 feet of the target square take 4d6 points of acid damage (Reflex DC 16 half). The gemstone used must be an emerald worth at least 400 gp.

Blue: All within 20 feet of the target square take 4d8 points of electricity damage (Reflex DC 16 half). The gemstone used must be a sapphire worth at least 500 gp.

Red: All within 30 feet of the target square take 4d10 points of fire damage (Reflex DC 18 half). The gemstone used must be a ruby worth at least 1,000 gp.

Prerequisites: Craft Magic Arms and Armor.

Cost to Create: 5,000 gp (plus cost for masterwork siege engine), 400 XP, 10 days.

Source: Heroes of Battle, page 135.