Witherforged Diamond

The Witherforged Diamond is an item that is used in the Second Legendary Questline. It was  not  added in the 1.5 update along with the questline. This item will be added in update 1.6.

Location
The Witherforged Diamond can be obtained from the Wither Forges from the final boss, Forgemaster Flarinaxx.

What It Is Used For
The Witherforged Diamond is used to "forge" the legendary bow, Stormbringer, Ender of Storms. It is used during the Second Legendary Questline.