I'm a level 30 summoner that has been playing Darius since he came out and this build has always helped me rip my lane up. Some people believe that Darius is only useful i nthe early game, well with this build I have always become more of a burden to my enemy summoners late game by being able to quickly assassinate and then flee before the other enemies coem to get me.

This build also aids in back dooring as Darius which is sometimes crucial. If yo are planing on going as your team's jungler then instead of the blade take the standard cloth armor and 5 health pots and build your wriggles ASAP.