please try the build before voting or commenting
I have tried this BUild and it Worked very well
Follow me in this guide to get the maximum Strength

TRY BEFORE VOTING!!!!

1st get ur Doran's sheild
2nd get ur berserker's greaves then start saving up for a zeal to turn it into phantom dancer
(do it 3 times )
then buy ur sword of the occult
start getting some kills to build ur strength (dont worry with 3 Phantom dancers u will get almost guaranteed Crit) when u get enough money , buy a BF sword , then get a Bloodthirster
After some time sell ur Greaves and buy another BF sword to make it an IE (infinity Edge)
this will make ur Crits guaranteed and does 250% dmg instead of 200%
And if there was an Armored Tank u can remove ur Infinty edge to get Last whisperer
Edit : if there was a tnak remove infinity Edge and put black cleaver
and Follow the new item sequence up!

Its pretty easy , just Duskbringer him and rush him and he will simply., get killed
get ur 20th stack ( occult)
and then u will be unstoppable
carefull about tanks , stick to last hitting minions to get gold , help ur team often whenever u got ulti ready , see if someone is in Low-HP and take the advantage to kill him with Paranoia

My 1st Guide
have fun and Goodluck Try it before u vote

You can Farm easily because of ur umbra blades , these will specially prove usefull when u get ur crit chance 100% and u got ur Stack of the occult maxed
money will be showering on you at this time i got like 7000 Gold at that time , but i already had the full build xD
anyway , be careful to build ur occult as soon as u get it
Happy farming

The masteries help you alot with attack speed and attack damage and the extra XP to get leveld faster then others and also dont forget the Gold mastery

Creeping is good For farming because they will be all close togather and u will get lots of money but Jungling will give you buffs and u'll get the guaranteed gold and Xp

Pros
u will kill them in the speed of light
u are very fast
Cons
if they focus you they have a chance to kill you if they were 3
tanks will put lots of thornmails xD

Ghost - it helps u chase them fast at low - levels and escape too but it wont be usefull when u get everything
Ignite - This will help your first blood , try to ignite a target which ur allys are attacking and duskbringer him
Exhaust - will be awesome for hard kills , use them on Worthy foes
Flash - will help you setup for a gank

so , what u'll need is (AD , AS , CSC (critical strike chance) and movement speed (+Arpen if ur against a tank) )
with this build i managed to auto-attack triple kill , the Bloodthirster will provide you with the required life steal (25%) so ur health will never go down a bit except if u are focused

Good luck with this Guide/build hope u recommend it to a friend , Remember "trying is before Voting"

thanx . My 1st guide ever

Play Video to see How Much i owned In a game i disconnected from got 20/2