Stormforged Diamond

The Stormforged Diamond is an item that is required for the Second Legendary Questline. This item was  not  added in the 1.5 update with the Second Legendary Questline, and will be added in 1.6.

Location
The Stormforged Diamond can be obtained from the Creeper Halls dungeon. It is looted from Creepinaxx, Lord of Creeper Halls, which is the final boss in the dungeon. This item can be in a way hard to obtain, because of the difficulty of this boss.

What It Is Used For
The Stormforged Diamond is one of the materials to "forge" the legendary bow, Stormbringer, Ender of Storms.