Darius
For anyone having trouble with this guy i'll tell you a great counter pick that stomps him in lane. Use sion whenever he uses his q start your w q him then e him pop the w then walk away. Eventually this will lead to him flashing out or you killing him unless his jungler comes and in that situation your best option would be to run. Malphite also works
will tear him to pieces.
will do just as well, but it'll feel even more frustrating because Darius is supposed to get kited... Fiora just kinda BSes all over him.
Other than that, A simple slow is all you need to outplay his Q healing, without the Q healing, he is a lot weaker.
as his first two items to counter him.