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.
This build is for your lust for carnage to destroy and maim their whole team. Of course since your Olaf your going to be living on the edge and pull off those WTF moments. Basic start for any jungler buy a cloth armor and 5 health pots, start off with golem make your way to wolves from there to ghosts and then to the twin golems and then red. Start ganking as soon as you are lvl 4. Enjoy the build I'm personally not much for descriptions just enough characters to get it published.