In their Campfire Chat livestream, Blizzard has showcased multiple runs through the Abattoir of Zir, a new temporary endgame challenge that looks a lot like Diablo 3’s Challenge Rifts, which will be released on December 5.
November 30 Campfire Chat Summary Itemization Changes Planned for Season 4
During the showcase, Community Manager Rich Bantegui showed the recipe for Bloodforged Sigils which are needed to access the Abattoir of Zir:
To craft a Bloodforged Sigil, you will need and Gold.
