Originally Posted by LemonWarlord
I personally don't really agree with your AP Build.
Teemo should ALWAYS have Nashor's Tooth if you build AP because it's by far the most useful item Teemo could get building AP.
+ AP, + Attack Speed + Mana Regen -Cooldown
Hit harder, hit faster, regain mana (no real need for Chalice since Teemo really doesn't use "that" much mana), and spam Mushrooms faster.
And if in your masteries you build the additive mana regen per second + Nashor's Tooth, mana will rarely ever be a problem.
To be fair, any Nashor's Tooth is a hybrid build. However, the hybrid build is quite strong. The all-out AP build gets you more mushroom kills but you aren't nearly as strong with autoattacks.
If you go HEAVILY AP early on, consider leaving Toxic Shot at a low level. You'll get more damage from the AP part than the level up, so you can take some move quick instead (which is never bad).
I do like the AP/attack speed build. It's similar to a Yi build (where Toxic Shot replaces Wuju Style). Can't poison towers, sadly.
Sometimes I'll get an early Mejei's Soulstealer and no other AP items -- just go back to attack speed and then some damage items.
DPS or Hybrid Teemo carries Stark's Fervor as well as anyone (and someone on your team should have one, so get it if no one else does). I do think DPS Teemo should get an early BF Sword (or upgraded item). Attack speed is good too, but damage always helps. Get a Black Cleaver if no one else on your team is...
AP Teemo should consider Rylai's Sceptre, the magic version of Frozen Mallet. Gives similar health bonus and slow with Blinding Shot. The new Void Staff is also OK on Teemo (but hardly necessary -- though it does make your Blinding Shot ridiculous).