Rainbow Shell

The Rainbow Shell is an artifact used to create weapons in Chrono Trigger. It was discovered in 600 A.D. and finally used to create stronger weapons in 1000 A.D.

The Rainbow Shell
With the help of Toma, Crono's party finds the Rainbow Shell in the Giant's Claw in 600 A.D. Since it's too heavy to carry out, they recruit Guardia soldiers to help transport it back to Guardia Castle, where it's stored away as a national treasure.