It took about 400 Hive kills, but it only took about 30 minutes. I have it equipped right now. The last upgrade on it requires the Crux of Crota. World 1st? Edit: For those of you asking: 1. Obtain the Husk of the Pit from a Blade of Crota 2. Kill ALOT of hive to fill up the perk 3. Obtain an Embalming Orb from Eris 4. Husk of the Pit evolves into Eidolon Ally 5. Once you max out Eidolon Ally, obtain a Crux of Crota from the hard raid 6. Eidolon Ally evolves into Necrochasm Edit 2: Almost 500 replies! Wow, glad I was able to help. Also, haters gonna hate ;)