This is my first build in Mobafire. At this build: Darius mustn't be solotop. If Darius will be a solotop you will feed your enemies. You need a friend with you. When I tried this build my score was so cool and my team won through me(30/4/3). You can take first blood easily. You should try this build ^^ Thanks.

First use Q to enemy champion. After a normal hit. After use W. If he/she runs use E. Use 2 more Hits. If he/she didnt dead Use Your ulti with your MAXIMUM Damage!

Greater Mark Of Desolution: This mark gives 1.66 Armor Penetration with 1 rune. You must buy 9 pieces.
Greater Seal Of Resilience: This seal gives 1.41 Armor with 1 rune. You must buy 9 pieces.
Greater Glyph Of Warding : This glyph gives 1.34 Magic Resistance with 1 rune. You must buy 9 pieces.
Greater Quintenssence Of Desolution : This Quintenssence gives 3.33 Armor Penetration with 1 rune. You must buy 3 pieces.

First buy a Doran's Blade. Play carefully.Buy a Boots Of Speed. After buy the ''Berserker 's Greaves''. After continue to kill minions. In this time you can take enemy Champions easily. After buy a Pickaxe and continue. After sell the Doran's blade and buy a B.F. Sword and continue to farming. After buy a ''Infinite Edge''. Continue to farming and buy a B.F. Sword more. When you have enough money buy ''Black Cleaver''. Continue to farming... After Buy a Pickaxe or ''Last Whisper'' directly. Now you can kill the enemy champions easily and they started to say ''Darius you are so good.'' lol... After buy a ''Youmuu's Ghostblade''. After Buy a B.F. Sword more and finish your items with BloodThirster. ^^