Olaf

Olaf, the Berserker

Runes: 

Greater Mark of Desolation. X9

Greater Seal of Resilience. X9

Greater Glyph of Shielding.  X9

Greater Quintessence of Vigor. X3

Masteries: 

Defensive

Ofensive

Skill Order: 

Berzerker Rage (Passive)

Undertow - Level 2, 8, 10, 12, 13

Vicious Strikes - Level 4, 14, 15, 17, 18

Reckless Swing - Level 1, 3, 5, 7, 9

Ragnarok - Level 6, 11, 16

Item Build:

Starting:

You can grab one more if you wait in base (4 pots)

Good item, to get your Hp back when you use your E, and it will stack with your runes and masteries.

If you need some damage get one or two Doran's Blade, Hp, Life Steal, and Atack Damage.

 

vs AD

vs AP

You are the tank in your team just rush Warmogs, its a Core item.

 

You need this if your team has like no CC, so instead of Warmogs, rush Frozen Mallet, Core Item.

When you get Warmogs or Frozen Mallet, rush Atmas so you can max you damage.

Great Item for you, will stack with your Warmogs Hp regen, your masteries, and runes. (MR,Move Speed, Hp Regen)

Get this and you will be so tanky, and ofc you will help your team with extra status.

Good item for Olaf, thanks to Olaf W, you will be so scary. I prefer tank items but its not a bad item for Olaf.

A great mid-late game item. If you die it will bring you back to life after a few seconds without giving thew gold meaning it gives you a second chance. Late Game death timers can be very long so you will want to buy one of these eventually in almost any game. It also provides both armor and magic resist so you can fit it into any build. 

 

 Good item vs Double AP, Atack Damage, MR and a shield.

Always a good item for any bruiser, to get more damage.

Ok, this is all items that I think are good for Olaf.