From Destinypedia, the Destiny wiki
House of Spider (formerly) Wrathborn (currently)
Void Rotary Cannons
Summon Fallen High Durability Rapid Flight Midair Levitation Wrathborn Shield
HKD-1, Instrument of Xivu Arath is a Fallen Heavy Shank corrupted into Wrathborn by Xivu Arath, God of War.