Build Guide by
Not Updated For Current Season
This guide has not yet been updated for the current season. Please keep this in mind while reading. You can see the most recently updated guides on the browse guides page.
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.
How This Build Works
Basically, Amumu has always been played as a tank, initiating with his q and then snaring with his ult. Apart from that, his uses wane. With no AP or Mpen, your despair's damage is not as noticeable as it could be, and your tantrum has the same problem. As far as a tank goes, amumu excels in what is needed to be done.
This guide, however focuses on a different playstyle of Amumu that is equally viable. It is an attack speed build that is build around his passive. Magic resistance reduction is key in this build, and to keep the reduction going, attack speed is needed.
you are not a tank in this build, in this build you are a rather squishy tank killer. His uses are most obvious when you start killing a tank and shredding his hp faster than thought possible. Averaging 2.0 attack speed, with bloodrazors and over 50 magic reduction plus some penetration, and with your despair constantly going, you will average a great 9% hp per second if you stay on them. The greatest part is, that you have the tools in your kit to stay on them. A well landed bandage toss will close most gaps, and your ultimate should be great for teamfights as well as keeping them near you.
In short, you are a kog'maw with CC to escape and chase, and can do damage without attacking (despair)
As amumu if you are using this guide, you should always have:
mercury treads - they are just the best boots to have
Malady - The malady passive syncs with your own passive so well, and the extra AP and attack speed, as well as magic damage help so much.
bloodrazor - the 4% hp per hit is just too alluring to give up, as your attack speed is almost capped, and you have extremely high resistance debuffs.
Now additional items you may want...
nashors tooth for the extra attack speed
rageblade for the damage, AP, and attack speed
Gunblade for the regeneration (spell vamp and lifesteal) that will help you get through big battles and then regen up right after
wits end for the magic damage and magic resistance (when they other team is heavily magicking you)
Survivability item so you do not die the moment you entire a fight.
I recommend sunfire or FoN, as sunfire's passive works well with despair, and FoN gives you a bunch of movespead and hp regen that helps because you lack lifesteal/spellvamp if you choose not to go the way of the gunblade.
I don't believe in builds that tell you exactly what to do, as that limits the playstyle and potential of a champion. So use the guide as just a new viewpoint on amumu, i recommend trying this in a coop vs ai first to get the gist of how squishy you actually are compared to the standard amumu tank build.
Play with it a few times and see how it works before voting. I dont mind if you don't vote.
also note that this may not be viable for high ranked games where there are a lot of players with high levels of skill. (Don't know this for sure, but as it's probably a pretty new idea, testing will be necessary to determine this)