Hunter Orb Factory Build

Class Perks - Nightstalker subclass. Light of the Pack

Armour - Skyburners Annex. Try get your armour/artifact/class to get tier 5 intellect (300)  and maybe 5 disc. Maybe use an artifact that can get you orbs on void grenade kills.

Weapons - Bad Juju or Zhalo to build super

The light of the pack perk creates orbs for enemies killed that were tethered up to 8 orbs including the original tether orbs. The helmet has a perk similar to the titan's Iron harvest perk which gives you a chance to create an orb on heavy weapon kills . Darkdrinker is brilliant for this but if enemies are too dangerous a machine gun works well too. Basically you should be a constant orb producer rotating between super and heavy.