Zed Ult and Yi's Meditate
So i was playing a match on league i was yi and there was a zed well the zed ult'd me so i used meditate he lands a full combo my hp bar might have dropped by 1/4 at most (this was md/late game builds) i had no armor built and base hp but anyways full combo does 1/4 of my hp in damage at most well i let off meditate after his combo and his ult bursts me for my entire health bar... 1.5k.. just on its own... and since death mark is 35% of the damage dealt it would have nearly killed me when i was meditating but it did nothing.... so my conclusion is that the damage reduction from yi's W meditate is not being applyed correctly with the interaction from zed's deathmark
