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.
Boots of Swifrness: Well these are quite self explanitory, they allow you to chase down your enemies while crying their ear off and waiting for Bandage toss to be off CD
Sunfire: You don't know? Don't play Amumu
Force of Nature: This depends alot on the team you're facing, i mean is it heavy magic you go with it first, is it heavy melee you go with Thornmail first. Thought having both gives for great survivability and ensures you not to Bluebill all the time for HP.
Guardian angle: This can be changed, i personally like it due to it beeing both armour and MR and with the little extra life it gives it makes for some awesome ganks.
Frozen heart: Well as we all know Amumu scales great with CD reduction so frozen heart is perfect. It gives mana, CDR, Armour and Attack speed reduction.
Great Solo hero.
Great Tank ganker.
Awesome team battle fighter.
Hard early game without Sunfire.
Weak against High MR team.
Gives to much confidence.
I personally don't think i need to explain to much play style.
Early game: Throw a Tantrum every once in a while, farm those creeps. Farm the **** out of them. Stay clear of to much confrontation early on. Buy Regroth upgrade to Philo's stone and swift boots.
Mid Game: By now you should be able to pick up a Sunfire, and this is where the fun starts. YOu can begin to gank but be sure to do it with a team mate, better safe then sorry and all that. Now you must check the other team to see if it's MAgic heavy or Melee heavy. Melee heavy go pick up a Thornmail, Magic heavy go pick up a Force of nature first.
At the end of midgame you should have both.
Late game:This is where we got Guardian spirit and sell Philo's stone for Frozen heart. We can really dish out some damage now and take it, enemies will run from afraid to get to close. With Dispair going, Sunfire and a tantrum every now and then people will fall like flies, Melee will batter them self silly against your armor and Casters will weep versus your Bandage toss.
Well have fun, get out there and give him a happy ending.