Hello. You might wonder why i recommend this AP runes. But it is because it help you a lot in early game. And when you have bought all this items, u will get an huge attack speed, which is very important because you gain rage for every hit you take. And then you can be dragon (ultimate) much longer/faster etc.

And you wont need that much of attack damage because you hit 2.5 times a second. And that regains much rage so in you are in a gankwar you can almost be a dragon permanent if you attack someone.

The item "Bloodthirster" helps you really much if your fighting 1v1. With the attack speed you have, you regain much hp.