Welcome To My First Guide hope u like it
This Is a 100% crit build

Runes
Greater Quintessence Of Desolation x3
Greater Mark Of Furor x9
Greater Seal Of Vitality x9
Greater Glyph Of Celity x9

Masteries:21-9
21 On Offense for nice crit dmg and havoc some cooldown red ...
9 On Def for dodge and some armour

At Start Buy Boots and 2 health pots
If u got Fb or assist go and buy berserker's greaves
Try to last hit minions and try to buy bf sword if u cant start on phantom dancer
Ok when u got ur phantom dancer x2 and infinity u deal 500+ crit
Now For 100% crit i go for atma's impaler
You sell the boots because u got speed from phantom dancer
and buy an defence item i go for Banshee's Veil
And for last item i buy frozen mallet for the slow

You Need more attack dmg and u need a harras spell max out darkbringer
Next is the fear 2nd maxed to fear more the opponent and kill him easily
3rd The ULTIMATE
4th The Shroud of Darkness

Ghost : For a nice escape or chase an enemy down
Exhaust: Use it on their carry

This is how i play hope you like it

Try to give ur Q to all minions and auto attack all (;