When used with attack skills that hit twice or hit multiple targets (e.g. Barrage or Cyclone Axe), each hit counts as a separate attack and triggers Splinter Weapon. Scythe attacks, dual attacks, and double strikes may also trigger Splinter Weapon multiple times.
Note that this damage is only dealt to the adjacent foes, not to the target itself.
This skill does physical damage, benefiting from Winnowing and triggering Mark of Pain as well as Barbs.
This skill does NOT trigger weapon modifications such as Furious, Zealous, or Vampiric weapon modifications.