If you replaced the Sunfire with an Aegis this would be pretty solid :)

Sunfire is too expensive to justify it's rather low EHP compared to Aegis.

Also, you're a better tank for stacking all those cool auras! :D

Thanks for the feedback people.
Its good to know how to actually make a good guide.
I'll test for some time, but as of now, wrapping up the jungle guide is way better xD

Still too weak to be considered a tank.

Amumu is actually one of the fastest jungler, not the slowest. His despair makes it very easy to jungle and tantrum is a great bonus. Take note : Amumu is only weak in the jungle to counter-junglers.

You may want to consider a ton of tank/ap items instead, like Rod of Ages.

Zhonya's isn't good on an off-tank. You still are supposed to tank a little.

Hope it helps :)

Oh, its a nice amumu, but to make the build easier and better, use some images:
Put the name of the iten like this: [[ name of the item ]]
Like [[sunfire cape]] will turn into: Sunfire Aegis got it?

Thats alot of gray text, maby instad of like writeing sunfire cape, but a "picture" instad,

like this It looks much better and more colorfull :)

Sorry man, but i dont like how you are building him i know much better ways ! look at amumu: it´s not toilet paper

I'll reserve first post for later use.