Playing any adc against most assassins is a terrible experience. Rengar ults, goes invis, then jumps on you and one shots you ect. with no counterplay available to you other than to flash. Its a really bad experience, especially in low elo where games are way less cordinated. Im suggesting a zhoynas for adcs or something of the like, maybe some boots? I understand assassins should counter adcs but i dont think feeling like you have no counterplay is healthy.