[Item Concept] Noir's Katana. (On-Hit + Lethality)

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I would suggest not making it one time use, but rather have reusing at a later time just cancel the previous blood mark to create a new one. Phage makes this overloaded, I would suggest removing it form the build path and getting rid of its effect. A cool multi hit passive would be fun, as this seems to support some attack speed Lethality builds.

I agree, after some thought I figured an active would probably make the item a little too strong? Instead, I took the active away and replaced phage with executioner for grievous wounds. I wanted an interesting lethality attack speed item for marksmen in particular. I'm afraid a multi-hit ability (similar to tiamat) may bring too much power to a champion like Master Yi, who's E already gives him something similar.