early game? strong. mid game? strong. late game? strong? see the problem here? of course riot doesn't care because his playrate is so low, but if you give a adc that starts strong and never falls off the ability to freely move around invisible, in the right hands hes a god. you go invis, you throw down posion, you right click a few times and BAM. everyone just dies. losing a fight? just go invis again. you cant give a champ the ability to dominate at all parts of the game the ability to be an invisible 1v5 assassian.