Cataclysm

From Chronicles of Astinus

The Cataclysm (Great Destruction) was a catastrophic event that occurred when the Kingpriest of Istar demanded to be given godlike powers in order to eliminate evil from the world. The gods threw down a fiery mountain upon the Kingpriest and all of Istar for his impunity. The result of this destruction was the creation of the Blood Sea of Istar.