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.
Let me preface this by saying i have tried every possible build for this champ, i play him almost exclusively. This is by far the hardest hitting Olaf build i have found
This build of Olaf played correctly is for all intents and purposes unstoppable. early kills building up your stacks of Sword and leviathan paired with Bloodthirster make for one devastating self healing Norseman. picking up Reckless fist almost assures you a first blood as long u are paired with a partner with a IQ greater than his lvl. This Olaf is a great harassment champ with this build and at about level 7 u will be able to solo at least 2 other melee champs at one time. This entire build depends 100% on the players ability is assess situations and know when to strike and when not to. With out stacks of sword, Lev, and Thirster you will be useless. Play smart and swing hard.