The following items drop from Xebnok the Wretched

Bracelet of Undeath \aITEM -39778419 -986353589:Bracelet of Undeath\/a (AutoImage by LootDB)	Dark Void Helm Pattern \aITEM -1897486870 -1792001841:Dark Void Helm Pattern\/a (AutoImage by LootDB)
Everliving Helm Pattern \aITEM -80067467 1585412284:Everliving Helm Pattern\/a (AutoImage by LootDB)	Leggings of Nightmarish Origins \aITEM -899073408 -1103930719:Leggings of Nightmarish Origins\/a (AutoImage by LootDB)
Moldered Flesh Wrap \aITEM -813627010 -451705217:Moldered Flesh Wrap\/a (AutoImage by LootDB)	Shadow Helm Pattern \aITEM -1166691814 1646823751:Shadow Helm Pattern\/a (AutoImage by LootDB)
Undying Helm Pattern \aITEM -312994251 1880610716:Undying Helm Pattern\/a (AutoImage by LootDB)	Vampiric Helm Pattern \aITEM 1269704584 1819591390:Vampiric Helm Pattern\/a (AutoImage by LootDB)
Void Infused Helm Pattern \aITEM -249277513 596882596:Void Infused Helm Pattern\/a (AutoImage by LootDB)	Xebnok's Band of Might \aITEM 484013507 530873399:Xebnok's Band of Might\/a (AutoImage by LootDB)