i honestly think zed is trash now
the only way to get the ad bonus now, is when the target drops to death mark.
not killed under the effect of death mark. doesnt matter if by zed or an ally.
by the actual ult proc.
doesnt that strike anyone as counterintuitive and conflicting with his passive? i mean as an assassin, if you can assassinate a target, you want to assassinate him, and not let him walk and gamble for that ad bonus and give him a chance to heal or get saved by an ally.