This gem was originally scheduled to be added in patch 2.2.0, but was replaced with Mutilation Guard.This article contains information that is no longer relevant to gameplay, but is kept here for informational purposes. This gem was only available to players participating in Season Four, but drops for normal characters as well since that Season's end.For builds with strong but slow attacks, it is considerably less efficient. This gem is a good way for area damage and high attack speed oriented builds to deal efficiently with tougher enemies, which would otherwise take too long to defeat via lots of weaker attacks.Rank 25 bonus bonus has no effect on players and all other types of elites.This makes Bane of the Stricken mostly only useful when attacking a single, solitary enemy, such as a Rift Guardian. Each attack made by the character will always apply only one stack of Bane of the Stricken to one enemy, regardless of how many enemies are struck. It has a small internal cooldown tied to attack speed.The increased damage stacks infinitely.Diablo II: Resurrected Review - Pile Of Old Bones

Diablo 3 do legendary gems stack