Blizzard has revealed that all you need to do to receive the unique Tormented MDI Banner is enter the Proving Grounds and time both dungeons at a +15 keystone. Great Push Sign Up
Proving GroundsBlizzard has not revealed the two dungeons that are part of the Great Push Proving Grounds, but they will be picked from the 8 Shadowlands dungeons. Dungeons will start at Keystone level +15 and if you time both dungeons at any point during the Proving Grounds, you unlock the unique banner Tormented
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