User blog comment:Nuclrdmntr/How to beat Darius AKA Dunkmaster D/@comment-4834593-20130122141833

You should add Vi to that list. I've found she totally rapes Darius. Whittle him down with E (most Dariusses push the lane with their Q anyways, and if not just place your E a bit more careful), also commit longer trades with Q in, autoattack, E, run. By this time he has most likely used his W and Q, you got your W bonus damage, and you won the trade thanks to your shield.

At some point, just initiate with your ult, if he flashes after it catch up with Q, etc. The normal things.