User blog comment:Nearthel/Hir'q, the Master of Scimitars/@comment-7709681-20170724173725/@comment-5235176-20170724185827

I: With your definition, it would imply that it would only apply one stack of Black Cleaver or his E per basic attack, for example, but it applies 2, as there are 2 instances of damage.

Q: There's an explanation in the ablity details.

E: "Dodging Strike" was a placeholder name for his Q that I forgot to change there. It's fixed now. The passive is not an on-hit effect, it's similar to black cleaver, that applies upon dealing damage, but with specific sources of damage (both strikes from his basic attacks and his Q)

R: It specifies "left hand" because it's always left hand, it doesn't interact with his W.