Ahri is a beast if you know how to play her. with my item build, runes and masteries i hope you become a beast with her as well.

With Ahri you need to work on your skill shots, because in order to kill an enemy you need to be good with her q and e.

Now go on and get those PENTAKILLS.

when farming it is best to use your q when your low on health. When your sphere glows green because of your passive you can cast your q into minions and regain some health and that helps you out a lot in the long run.

I think Ahri is a good burst champion.

I use her E to draw the enemy towards me and dealing some damage.
Then my Q that throws an orb and deals magic damage out and true damage in.
Next use her W which casts three fire balls wich seek out enemy champions.
Finally use a few auto attack and wait for your E,and W to cooldown.
If they try to get away use her ult(R) :)