You want 4p Darkmantle but I included alternatives for before you achieve that.
- Ebon Mask / Darkmantle Cap
- Mark of Fordring or Beads of Ogre Might
- Truestrike Shoulders
- Cape of the Black Baron
- Cadaverous Armor / Darkmantle Tunic
- Bracers of the Eclipse
- Devilsaur Gauntlets
- Cadaverous Belt or Serpentine Sash / Darkmantle Belt
- Devilsaur Leggings
- Swiftwalker Boots / Darkmantle Boots
- Painweaver Band & Tarnished Elven Ring or Don Julio's Band & Tarnished Elven Ring
- Hand of Justice & Blackhand's Breadth
- Dal Rend's Sacred Charge & Dal Rend's Tribal Guardian
If daggers use Crystal Tipped Stilleto & Distracting Dagger
Darkmoon Card: Maelstrom, Earthweave Cloak and Earthstrike if you want to grind.
I probably missed something.