Storm star

A storm star is a magical morning star of ancient design, thought to have originally been devised in Netheril. Many variants of the weapon exist, with most being cast in electrum-plated steel. They are among the longest and heaviest of morning stars. Storm stars crackle with spectacular, though completely harmless, arcs of lightning when wielded. This weapon allows its wielder to unleash a more dangerous chain lightning spell called a battle bolt. It is worth between 1,500 and 15,000 gold pieces.