User blog comment:TheTobarMethod/Why you SHOULDNT follow Pro's./@comment-122.49.136.57-20130214211259/@comment-5933616-20130214213857

IDK if you know, but once upon a time when Teemo players got flamed for pick. That time is called ranked queues. You don't see many Teemo players in ranked (The higher elo/division the less teemo there are) not because they are weak. It's because they are hard to play (Yes, actually hard to play properly). Teemo can fit almost anywhere, his damage is outstanding, got cc, traps. But if you follow build to deal most dmg, then you are going to be focused and killed in 0.45s. High elo teemo players (RainMan for example) ALWAYS use build, to counter his enemy. No matter if teemo does 100 dps, he can be still strong because he is just building support-tank. Few weeks ago i looked at guides. They all give same items- Abysal, rabadon's, nashor, malady, void, guardian angel, etc... As i watched my friend's old replays of 1800+ elo i noticed one thing, that you can rarely see in normal game- enemy Kasadin sold Abysal sceptre and bought Rod of Ages! And after 5 minutes, he sold M.Penetration boots to buy M.Resist. He Changed his both items that he had to make advantage in early game.

tl;dr

Higher elo players don't use guides, they try to fit to enemy items and style.