Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
in my build teemo go Ap so you need runes that helps your AP skills there for i yous magic pennetration
your q is a good start youse you q and then attack. teemo has a lot speed so it is easy to get away