Originally Posted by Isa

thornmail

Originally Posted by Kryo

Junglers are mainly dps with the exception of nunu and fiddle.

Just use caster and dps rune setups.

Originally Posted by Deprived

if you want to go for more of an anti carry role, then tri-force olaf is your way to go

runes:

whatever, just make sure you have armor yellows and something thing that increases your auto attack output on red/quints, i personally use a mix of AD and armor pen since it's my general jungler page

masteries:

21/0/9 or 1/8/21 depending on whether you want a strong early-mid (first one), or a strong mid-late (second one)

skill order:

one level of w at either lvl 1 or 2

r > q > e > w

spam your q in jungle, make sure to pick the axe and keep throwing it, same thing applies while ganking

jungle path:

either get cloth armor + 5 pots and start at blue and do the normal path

or if you're worried about getting counter jungled or you want to sustain longer in jungle, start with vampirc scepter go wolves -> wraiths (smite the big one) -> small golems, go back to base and get a cloth armor and jungle again starting at blue

item build:

wriggles lantern
beserker greaves
triforce

at this point you need to decide whether you need to be more tanky or more anti-carry

if anti carry:

phantom dancer
sunfire/force of nature
atma's impaler

if tank:

sunfire/FoN/randiun's omen/BV
atma's impaler

this build makes you spike very hard during the mid game, while trading a bit of late game power and a small amount of tankiness. it's very easy for olaf to proc tri force/sheen every 2 seconds with his q and e. you should be able to shred any squishies apart in less than 3 secs, while being naturally tanky between your ultimate and high armor values.

another focus of this build is movement speed, olaf has no closing mechanic or escape mechanism - which is why a lot of people love ghostblade/ghost on him. however, if the enemy can escape olaf in the 8 second burst of move speed from ghost + ghostblade + ult (flash over a wall, phantom dancer ranged carry, etc.), then olaf is royally screwed because he'll be kited. a phantom dancer + triforce solves that problem by making him fast forever

yes, this not the conventional build, but i've tried out that build, and a bunch of others and i can tell you this is the one i've had most success with (i play @ 1.7k elo fyi, so this should work for up to 1.7k)

just don't rush frozen mallet as your first big item after wriggles, it gives you next to no damage output. if you're going the conventional build, get something that will increase your damage first, then get a frozen mallet. a frozen mallet basically lets you stick to someone forever if you catch up - but once you're there you'll take ages before you can kill them. besides, your axe throw is basically a permanent slow if you can keep picking it up and throwing it while chasing - which is kind of a frozen mallet in itself, so you don't need to really rush frozen mallet