Dual Keres Prime Build for my Demon Hunter Wisp: --->Link

Running Corrosive because we need armor strip and you can apply Viral with your primer ([Epitaph], [Kuva Nukor], etc...)

As a Riven for this build I would suggest a +Crit Dmg +Element (Electricity if you want to keep Corrosive or get whatever you get really). Replace [Voltaic Strike] if you get an Element on the Riven. If you don't get +Crit Dmg and an Element, then replace [Weeping Wounds] for the Riven.

The [Dual Keres Prime] have an insane Critical Chance paired with an even more insane Critical Multiplier. Using this build + the Demon Hunter [Wisp] Build, will let you deal Tier 6 Crits consistently.