if you want the only 2 /okay/ melee adcs, go with fiora, and ad sion. and even then ad sion needs to get 200 farm.
send nasus top, and build him tanky, he can do a lot more once tanky than he can squishy. all you need for crit damage on ur ult is ghost blade, Atma and tri force. that's 35% and yes, it may not sound good but you do understand that you have a 1 kit KO with 300 Q damage. (huehuheuehue same stats as pokemon moves that are 1 shot ko.) if you wanna actually get close enough to press Q and hit something you need a warmong.