Here I found a guide about Darius. This is made by toplaner. Now check it out.
Darius is a tanky champion, keep in mind that u are NOT a Carry, stealing kills with your powerful Ultimate probably bring you to lose a game. Your role is simple, start the teamfight and keep away enemy carry. Early game u have to play passive u are extremely gankable, only last hit, not use your Q on minion, this skill have a decent range use it to apply bleed effect on your enemy and continue to farm.
Mid game Darius reach a good sustain, u can start to gank mid lane to weaken enemy AP carry, then continue to farm. Late game u usually lead the fight, focus enemy carry. This is the way that I play Darius, if u have tips submit a post, thanks.
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