Darius
Maybe Darius could use a buff similar to Garen?
Darius currently gets 5% MS for every enemy champion that is bleeding.
My suggestion is to have it just be when he's moving towards them, be a little higher(never retreat), and affect team mates near him. Not going to use numbers but it sounds neat. Or even have the MS be based on the amount of stacks of bleed on enemy champions. Or even make it based on his current level. (like Garen passive getting stronger at 11 and 16)
Make him more of the leader type of guy who tries to push forward and not retreat. Feel free to discuss.