find aNightmare Sigil. Your best chance for getting one of these is completingWhispers of the Deadfor the Tree of Whispers to earn a loot cache, since these have a chance of dropping Nightmare Sigils. When you've got one, simplyuse the sigil in your consumables to activate the dungeon. ...
You will need to collect nine Distilled Fear, which can be combined with 250 Sigil Powder--collected from scrapping Nightmare Sigils--at an Occultist to create a Glacial Fissure Nightmare Sigil, which will always be Tier 31. Take that to Glacial Fissure in Fractured Peaks to take on the ...
You can also keep an eye on World Boss timers to know when they spawn, as they can also be a source of Stygian Stones. After you get your hands on at least two Stygian Stones, you canhead to the Uber Boss dungeonyou want to summon and use them. You need other materials to summon ...
KeyedDungeonInsideNMDCan only use a Nightmare Sigil outside a Nightmare Dungeon. KeyedDungeonRequiresTier2Your party must be in World Tier 3 to activate this Nightmare Dungeon Sigil. KeyedDungeonRequiresTier3Your party must be in World Tier 4 to activate this Nightmare Dungeon Sigil. ...