Hello! this is my first build on Mabofire, so please don't comment if i spell wrong or something.

Olaf - How to?

play aggressive, go for the early game kills. but make sure NOT to tower dive at low level. thats just stupid.

Farmin is very important. Go for the last hits on the minion throughout the entire match.

At the beginning of the game you should by Doran's shield, the build items for Frozen Mallet and Frozen Mallet itself. Then go for the boots. I like boots of mobility, because if your running in a long chase for the kill, you will get that extra movement speed. Now, go for Stark's Fervor, you will just love the life steal. Then go for Guardian Angel, it can be very handy to have in the team fight, where the enemy's probably will go for you first. Infinity Edge is for the extra attack damage. then buy The Black Cleaver for the extra damage and attack speed boost.

If your playing 3v3 make sure to kill the dragon at level 5, 6 or 7. / depends on the amount of feed you got) and make sure the other team don't kill it.

Use only your Summoner Spell if you really have to. Don't waste it on a chase, because you know that you have boots of mobility.

Wreckless swing is very important. Use it for last hits on champions.

You have to go for ganks on low lives champions. Just wait in a bush someplace and just rape em when they gets within your range. I would highly recommend use your Undertow for the slow down. Make sure to use vicious strike BEFORE using your Undertow, because it will boost the damage of it.