WARNING! I made this guide a very long time ago, and it has problems.

Amumu is a really fun champion, and he was the first champion I played a whole lot on League of Legends. I made a build that worked extremely well for me, but as I've grown as a player, this build is very broken. I used to play mainly on Twisted Treeline, which has a completely different dynamic than the Rift. This guide can work okay if you do well early on in the game and if you are a lower-level player (I wrote this when I was level 20) but I strongly suggest using someone else's guide instead.

That said, this build gives a lot of AoE damage to compliment Amumu's abilities, and can be a lot of fun if you just want to mess around. FOR THE LOVE OF GOD, do not use this build in Ranked!!!

Thank you for reading my Amumu guide! This is my very first guide, so any comments and constructive criticism is greatly appreciated.

AP Tank Amumu

Amumu is a great character to build as solo tank. He has high health and some great AoE skills. My Amumu build relies heavily upon these skills, and if you play it right, Amumu can be a killing machine! This build works well with almost any team configuration, regardless of other characters on your team. Amumu works especially well with ranged mages such as Karthus, since he can stun enemies while Karthus drains their life away.

Pros:
Amumu has great AoE skills. These help you to push on a lane quite easily, since you can kill large groups of minions very quickly.
Amumu is also a strong fighter. Once you get him to a higher level (around 15) he should be able to kill almost any enemy character 1v1. After reaching 18 and getting the full build, Amumu can take on multiple enemies at a time. I've gotten many multi-kills with Amumu, including several Triple Kills completely without help.

Cons:
Amumu is fairly "squishy" at early levels. You should play carefully until you get to level 10 or so.
Amumu is also vulnerable to ranged attacks. As a melee fighter, it can be very difficult to fight someone like Ashe who can hit you from a distance and slow you so that you cannot catch up to her.
Since Amumu is a melee figher, any stun or slow effects make it much more difficult for him to be effective. However, using Bandage Toss and Curse of the Sad Mummy can help you to counter this disadvantage by stunning your enemies and drawing you into them.

Amumu's skills are his greatest assets in my opinion. When used together, they make him an almost unstoppable force.

• Bandage Toss - Amumu throws a sticky bandage that stuns an enemy and pulls Amumu to them. This is extremely effective when chasing enemy champions, since it pulls you to them. This can also be used to gank, since it can be shot through walls or out of bushes into the middle of a fight.
• Despair - This is an AoE around Amumu that can be toggled on and off, dealing damage to any surrounding enemy units. Despair is great at early levels to help level up quickly, as it makes it easier for Amumu to kill groups of minions or monsters. You also want to turn this on anytime you are going into a team fight, since it will hurt every enemy that comes near you.
• Tantrum - Another AoE attack. Amumu spins around, hitting everything in a short radius around him. Similar to Despair, this is good for fighting any group of enemies, including minions, champions and monsters. You should use this very frequently, as it uses hardly any mana and does a good amount of damage.
• Curse of the Sad Mummy - Amumu's ultimate is a large AoE that stuns enemies and deals damage. This is extremely useful in team fights, as you can stun the enemy as your team attacks them. This also works very well when used with Despair and Tantrum since you can trap enemies within your area of effect.

I have found that it works best to level up Despair and Tantrum earlier than Bandage Toss. The reason behind this is that Bandage Toss is good for getting into a fight or catching fleeing enemies, but Despair and Tantrum are used much more frequently and are more versatile. You should level up The Curse of the Sad Mummy as quickly as possible, however, because it can sometimes mean the difference between getting a kill and being the one killed.

Amumu works extremely well as an AP tank. The following items are essential to this kind of gameplay:

• Trinity Force - This is an all-around boost to everything Amumu needs. It gives him health, mana, cooldown reduction, attack damage, and even a bit of extra mobility. As you build this, think about what you need at the time. If you find yourself needing mana, buy the Sapphire Crystal before Zeal. I usually get Ruby Crystal and Sapphire Crystal, then level up to Phage, then buy whatever else I can afford as I go along.
• Ionian Boots of Lucidity - I use these boots because of the cooldown reduction. Amumu has very powerful abilities, but his normal attack is not very good so you need to be able to use his abilities as quickly as possible.
• Ravenous Hydra - This gives Amumu life steal, as well as making his normal attacks deal damage in an AoE. Life steal is very helpful to a tank, and the AoE helps Amumu to farm minions even easier. Ravenous Hydra also has a great AoE active effect as well.
• Sunfire Aegis - The Sunfire Cape grants HP, armor, and a constant AoE around Amumu.

Other items are helpful, such as Hextech Gunblade or Infinity Edge, but these four are essential to this build. After building the above four items, your Amumu will be all but invincible at level 18, and so you can play around with getting other items to fit your fighting style.

Masteries for Amumu are fairly flexible, since almost all of them would be helpful in some way. The masteries I outlined above are what I use, since they fit my fighting style best. I use a lot of cooldown reduction and attack speed, since my Amumu build has a lot of attack damage but hardly any speed boosts. In the defense section, I chose what seemed to be the most effective using the least amount of mastery points, since Amumu needs a high defense but it is also helpful to put some points in attack and utility. In the utility section, I tried to boost Amumu's mana regeneration, since at early levels he uses Despair and Tantrum frequently and runs out of mana quickly.

When playing as Amumu, you must always be watching your team to see if anyone needs help. Amumu can push effectively on his own or with a carry, but later in the game your opponents might start ganking or you might have a team fight in the mid lane. In that case, a tank's job is to always be there to help your team out.

When building your items later in the game, consider what your role will be. I often go solo on the bottom lane, so I use Hextech Gunblade to help me get as much attack as possible. However, when I tank for a carry, I often get Aegis of the Legion to give them more defense and so that I can block the enemy team if my carry needs to recall.

Amumu is an excellent jungler with this build as well. If you get a good head start, you should be able to take the dragon solo at around level 11. The red and blue buffs are both very useful to Amumu, but you should be aware of your team's needs. If your team has a mage, then you should probably let them take the blue buff. On Twisted Treeline, this is not a problem.

On Twisted Treeline, Amumu is great for going lane to lane and helping whoever needs it. It can be very rewarding to jungle back and forth across the map and kill anyone who tries to run away from your teammates. Twisted Treeline is a great map for Amumu, since it is so small and his Bandage Toss can carry him through walls. Once you get Amumu to about level 13, you should be able to hold the enemy away from an altar alone, at least until the rest of your team can catch up.

When playing as Amumu, never be afraid to jump into the middle of a battle if it is needed. If a carry is trying to get away from two enemies, this build should be good enough to let you help them escape, even if the enemies are a level or two higher than you.

The sad mummy is a great choice for a tank or a solo pusher. If you follow my build technique, he can become practically invincible at his later levels, although he is a bit squishy at the start of the game. Amumu is usually my favorite character to play, and this build works very well for me.

Thanks for reading my guide! If you have any questions about why I chose certain things, any suggestions, criticism, or just want to say hi, please comment below. I'd love to hear from you! If you try out my build, please let me know how you like it!