This New Zed Ult...

"Reaper of Shadow: Zed's R now "reaps the shadow of the strongest foe slain under Death Mark, gaining X attack damage (5+ 5/10/15% of victim's attack damage"

Ok so let me see if I understand this correctly...

Zed hits 6 he now has ult

So, to actually reap the benefits of that passive on the ult, he has to ult the 1 squishy damage dealer on your team who builds ad who now has no counterplay to the ult besides "try to stay away from Zed" which isn't always possible, especially against a good Zed

He not only gets the kill but now gets % AD, and if he killed the adc he now has extra ad damage to continue killing with ults

Oh and if you, the adc, buys more damage and he kills you, the % AD updates, so if you die he gets stronger and if you try to make yourself stronger and he kills you, he gets even more stronger

I feel like...something like this has the potential to become too strong, especially if adcs have no counterplay to it like how ap midlaners have Zhonyas which gives them armor AND the stasis

This makes adcs more of a target than they already were, but with no way to stop it besides staying out of or near a fight when Zed is up

I can't tell EXACTLY how strong this would be until it is out in game and I play against it but I feel like something like this could either work nice or go really really wrong