Dark Phantom Cape

Dropped by 2

• Lieutenant General Nokhor level 63 0% 15818
• Gordok Ogre-Mage level 53 0% 11443

Dropped by, from a shared table 40+

• Abominable Snow Yeti level 60 61135
• Ancient of Wisdom level 59 62814
• Arch Druid Mothshroud level 59 63068
• Avranagos level 60 62832
• Barkskin Den Watcher level 62 61346
• Barkskin Ursa level 62 61342
• Barkskin Windtalker level 62 61347
• Champion Coldmine Invader level 60 13551
• Colossal Anubisath Warbringer level 62 15743
• Death Singer level 59 8542
• Disrupted Arcane Elemental level 63 61949
• Dragonmaw Mindslave level 61 61889
• Duskfang Creeper level 63 61935
• Elder Growlheart level 62 61348
• Forgotten Echo level 61 62607
• Gordok Mastiff level 59 13036
• Hakkari Priest level 60 11830
• Hive'Ashi Sandstalker level 59 11723
• Infinite Rift-Lord level 62 65105
• King Morogo Thunderfoot level 60 61098
• Lord Xanvarak level 63 61609
• Manascale Whelp level 60 59988
• Petrified Treant level 59 11458
• Phantom Guardsman level 61 61200
• Phantom Servant level 60 61205
• Qiraji Lieutenant General level 63 15757
• Relentless Felguard level 62 61351
• Relentless Temptress level 61 61350
• Risen Guard level 59 10489
• Runic Construct level 61 60596
• Shadowbane Alpha level 63 61191
• Skitterweb Crawler level 60 61206
• Skitterweb Venomfang level 62 61208
• Spectral Worker level 62 61934
• Supreme Anubisath Warbringer level 62 15758
• Temporal Dust level 61 61317
• Twilight Avenger level 59 11880
• Withermaw Shaman level 62 62871
• Xalthix level 61 61565
• Zafan level 60 61613

Only the first 40 are listed.

Found in 5

• Large Mithril Bound Chest 0% 153468
• Large Mithril Bound Chest 0% 153469
• Large Solid Chest 0% 153463
• Large Solid Chest 0% 153464
• Solid Chest 0% 153454

Contained in 2

• Emerald Encrusted Chest level 2 2% 10752
• Mithril Lockbox level 2 0.1% 5758