Build that allow you to use both advantages of this weapon: high bleed duration and good coverage of [Machete] attacks.
Build up Combo by using W + RMB for circular attack + CC, then use heavy attack in groups of enemies for instant annihilation. If you don't want to waste any forma and just have this weapon in case of Archon Hunts/Arbitration buff then swap [Primed Reach] for normal one or pretty much anything else