Runes for Teemo
 

What's a good rune set up for Teemo?

Right now, my main concentration is armor pen and attack speed. so it's +21 and +15% , respectively.

I'm sort of interested in going Critical Chance with Teemo, but i'm not sure if it's worth it. I was thinking about replacing attack speed seeing as how Teemo is already pretty fast when it comes to attacking. Give me your opinion on this and your rune set up as well. Thanks in advance.

I go critical chance with him, 15% right now. I think it helps a good bit early game, especially if you don't get an IE (I don't usually). Dunno what else he could use but armor pen or att speed unless you get some flat HP runes for the early game.