Hellcat Waistguard (Legendary Belt): Bombardment grenades have a chance to bounce 3-5 times, dealing additional 50% damage on each bounce, increased to 800% on the final bounce.Sin Seekers (Legendary Quiver): increases damage by 250-300%, and removes the channeling cost.Mantle of Channeling (Legendary Pauldrons): while channeling Rapid Fire, increases damage done by 20-25% and reduces damage taken by 25%.

Wojahnni Assaulter (Legendary Crossbow): Rapid Fire deals 75–100% more damage for every 0.15 seconds it is channeled, stacking up to 30 times, first stack gained immediately.Buriza-Do Kyanon (Legendary Crossbow): each shot will have 1-2 guaranteed pierces (in addition to High Velocity rune effect).Does not work with Sin Seekers (see below) since no resource is expended.

Taeguk (Legendary Gem): increases damage done by 2% per tick (+0.04% per rank) and armor by 2% per tick (rank 25 bonus), stacking up to 10 times.

Diablo II: Resurrected Review - Pile Of Old BonesĢ9 September 2021 Non-rune enhancements:

Diablo 3 rapid fire wiki