Not Updated For Current Season
I start with Sapphire Crystal and 1 Health and Mana Potion.
If your team want you to go solo, do it but be careful because u dont have much HP in the beginning so u could die really fast.
Focus on Minons and right after u are lvl 3 try du harass him with a combo of Disortion,Sigil of Silince and Ethereal Chains ( W Q E ). U have enough dmg to kill him with this combo and even if he has survived he shouldnÂ´t has much HP left so he has to go back.
Now you can start to out lvl him so that you can kill him the next time for sure =)
Right after lvl 6 u can start to help your teammates. Hide until they are in range and do a (W Q R E) combe. If they arenÂ´t dead, your teammates can do it because your stun should activate now =)
U need to lvl up and farm money quickly, because u need your ap equip fast so that u can gank every champion alone.
This is my first build, but i hope u like it... and sorry for my bad english >_<