My summoner name is BEASTLYxHAMMER and by all means im not good but ive been playing Olaf since i hit lvl 10 and right now im lvl 23. Also i started playing about last august.

This is my guide to building Olaf. Since Olaf is a melee DPS my build utilizes this. This also allows you to like the title says kill tanks quite easy.

In runes i take 9 greater marks of alacrity for early game AS so that i hit more than the enemy. Also 9 greater seals or resilience for early game durability. There is 9 greater glyphs of celerity for per lvl cooldown for your abilities which helps mid/late game.

I take 14/0/16 that utilizes the attack trees extra damage, AS, armor pen, and lifesteal. In utility I take good hands, improved recall, swiftness, runic affinity, greed, and awareness that increases xp gain which allows you to get more lvls than your enemies.

I start with boots of speed for mobility then turn them into berserker greaves for extra AS. Then I transition into a zeal into an infinity edge. After this you want to turn that zeal into a phantom dancer then buy another. Buy warmogs for increased health and to amp your W ability. Your end item will be bloodthrister for increased AD and lifesteal.

Early game you want boots for speed, Also you want to get undertow for early game harassment. When you get your zeal and infinity edge you want to start looking for ganks when you do gank lead in with undertow then pop vicious strikes for the healing per hit it gives you then you want to hit them with reckless swing for the kill.

This is my first guide so im not sure how reliable it will be but it will help new players with Olaf and maybe give veteran Olaf players a new idea on how to use him.