Seven coils of brightly polished copper wire dangle from this strand of interwoven silver and copper threads.

Each of the seven coils on this chain can be detached and thrown. When thrown, a coil explodes into a 30-foot line of lightning originating from you. Each creature in the area takes electricity damage based on the size of the coil (Reflex DC 14 half).
Each of the four smallest coils deals 3d6 points of damage. The next larger two each deal 5d6 damage, and the largest coil deals 7d6 points of damage.

Prerequisites: Craft Wondrous Item, lightning bolt.
Cost to Create: 2,000 gp (plus 350 gp for base item), 160 XP, 4 days.