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.
Jungle olaf build-
Owns almost every time.
Life steal cepter with lifesteal skill lev 1- wait 10 more secs to buy red potion.
GO after the blue golem destroy small minions first, after 2nd minion has less then half hp use potion. You should have enough dodge to kill it with only red potion. If unlucky use heal. Then kill all other minions on your side of the map leaving the red buff last. kill small minions first then theres normally a 60% chance u will need to use heal.
Go back to base and buy health stone 475G+ as many red potions as your money allows you. GO find a lane and gank it with your red buff + ghost and heal if u havent already used it.
Just buy the rest of the items and keep jungling and ganking when times presents themselfs esp when you have ghost up and ared buff go nuts with his ulti.
This build works exceptionaly well when faced against More DPS chars as you will dodge most of their attacks and u can even take on 3v1 in some circumstances and be likely to kill at least 2 with so much lifesteal. This build works well if you know how to use olaf and think smart when going in and backing off.
I guess one of the main things about this build is deception, most times u wanna make em chase u or u go in on low health with heal handy and pop it right when ur low on health so ur atk speed is maxed for affectiveness.