Hellcat Waistguard is an effective x2.5-5 multiplier (see Mechanics section for details) which works with all grenade skills including Rapid Fire Bombardment.

Sin Seekers increase Rapid Fire damage by 300% and remove its channeling cost.

Unfortunately it also makes all other sources of additive damage ( Rapid Fire rolls on gear, Strongarm Bracers, Taeguk, etc.) completely irrelevant.

Wojahnni Assaulter is our strongest multiplier, giving 3,000% additive Rapid Fire damage.

Ring of Royal Grandeur lets us combine the two sets.

Aughild's Authority gives some extra damage and toughness.

Natalya's Vengeance provides 14,000% damage and 60% damage reduction after casting Rain of Vengeance.

It's even possible for Natalya Rapid Fire to claim the overall #1 spot, provided you have enough Paragon to run the final version of the build. But in Season 23 Hungering Arrow builds received a massive nerf bringing GoD DH down to the Rapid Fire level. Rapid Fire stayed on the top of DH leaderboards for 4 seasons until the Gears of Dreadlands set was introduced in Season 21. Instead of 4 different builds ( Impale, UE MS, N6M4, and M6 CA) performing within 3 tiers of each other, we suddenly had only one undisputed top dog.

The Rapid Fire builds were so powerful that they immediately claimed the top spot on solo Demon Hunter leaderboards, destroying the fragile balance we had after Season 12 and Season 16 balance patches. Compared to it's LoD cousin, Natalya Rapid Fire is a lot squishier and a bit clunkier but (in its ultimate high-paragon form) it deals almost double the damage! Natalya Rapid Fire Demon Hunter first became a real build in Season 17, when two of its key items, Wojahnni Assaulter and Sin Seekers, received tremendous buffs. Natalya Rapid Fire Solo Push Introduction

Diablo 3 2.2 demon hunter