This build isnt too bad :). you should try running gold per 5 Quints with it. I do that when I use Heart of gold on Shen sometimes. +1 from me.

Apart from the runes, this is pree much what i build. xD. I instead get flat ap runes for quints, per level for glyhs, flat armour runes + magic pen runes, this permits me to be slightly more offensive in my playing. Another item to consider is a zhonyas hourglass + 100 armour and some decent ap can work well. its up to you whether you think its good or not tho xD
Nice build :)

The MR from runes isn't enough to survive off of and banshee's is an absolute must for the shield as you should want to absorb as many stuns/harass as the tank. The Aegis helps the whole team out that it is also needed. Rushing the HoG after philo stone is better because the gold per 10 will help a lot later on. the sooner you get these the better and the health from it is enough. I also like the BV before the Sunfire usually but that is always dependent on the game as I said in the guide. As you might notice there are still spots open in my build as it allows you to itemize to the game. Im not going to suggest and abyssal if you have no AP on your team to benefit, but if you have 2 APs then by all means that would certainly work as it gives you a bunch of useful stats. The CD can be a problem, but if you really want to fix that throw a kindlegem in there. I often find that my support will grab soul shroud and I guess you could get a shurelya's reverie but there are better options for tanking. These leave your CD reduction options slim and the MR runes are a must imo. But thank you for the input...I should probably add a situational item section to address the Abyssal scepter debate

While it is possible to take red down also it leaves you rather low and unable to gank after. I go back, pick up the pot and then go to red as i have a full red buff and can go gank immediately after rather than waste some to go heal.

Amumu is a great jungler, but I don't really see your guide add anything to the already incredible guides though. What makes your guide set yourself apart from the others?

Other than that, it's solid of course. +1

Really nice! But i cant imsgine that jungling with regrowth pendant really works.
Btw i am usually able to take down red buff too. And if you ask your team kindely to pull golem it isnt a real problem.+1!

I'll vote up, but no Cooldown Redux? You get MR runes, but then continue to stack MR in your build. Sunfire should come right after your Philosopher's stone. Rush it. Also, consider an abyssal scepter as it lowers opponent MR and gives you MR as well as some AP, which makes your E somewhat OP...

I love jungling as Amumu now!