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.
Welcome to my Ap amumu build with some major survivablity and initiating potential, with this build at level 18 you will have 3500 hp AND 350 AP with 33.66 MP.
Excuse some spelling mistakes, as for im stupid. lol.
Masteries: i choose to go 9/21/0 taking magic penetration in offense but still going on the defense tree for a more beef. You could always use a 9/0/21 tree but for me i prefer 9/21/0
Summoner spells: exaust and ghost is where your gonna wanna go here you can replace ghost with flash if thats what you please but i think amumu really benefits from exaust because of his ablility to gank. also exaust can save you from a stupid mistake you made early game.
Early game: Grab your sapphire crystal and head out to your lane early game for amumu... well.. sucks your mana hungry and have little damage output. For the start you must play very defensively. Just last hit creeps with E
Mid game: you should now be at least over level 6 and have maybe your rod of ages and sorc shoes and working on your sceptor. know is when ill try to gank mid, ping your enemy and let your mid player know your going to try to gank. Bandage wrap in curse of mummies and let the gold roll in.
End game. teamfights teamfights teamfights, amumu is a exeptional teamfighter. your going to want to initiate and ult the whole team while your mages and dpsers melt them while their stunned not to mention your doing exeptional damage with all your spells. teamfights shouldnt even be funny how much you wreck.
Rod of ages: obvious hp/mana/ap
Sorc shoes: magic pen is a good thing to go as amumus ap scales poorly. if the team has alot of CC ALWAYS GO WITH MERC TREADS!
Rylai's crystal sceptor: Obvious as well hp and ap
Randuin's Omen: i like to throw this in the build because YOU WILL GET FOCUSED and the armor boost is great +cdr
Zhonya's Ring: pure ap is good :)
Abysall sceptor: AP and reduces the enemys magic resist. perfect.