Passive - Cursed Touch
Amumu lowers the enemy’s magic resist when he auto attacks them.
Q - Bandage Toss
Amumu throws a long range bandage, stunning any enemy it hits and dragging Amumu to it.
W - Despair
Amumu does magic damage in an area around him, including a percentage of the enemy’s maximum health. This ability is a toggle.
E - Tantrum
Amumu takes reduced damage from attacks. When activated, Amumu does magic damage in an area around himself. Every time he is attacked, Tantrum’s cooldown is reduced.
R - Curse of the Sad Mummy
Amumu damages enemies in a large area around him, entangling them.
As you can see from his abilities, Amumu mostly does area of effect damage. Grouping up tightly against him, especially when his ultimate is available, is very, very bad. Instead, try to spread out and make sure he can only catch one or two of you.
Amumu’s damage is surprisingly high once he completes his Runic Echoes item. Be sure to take that into account if you decide to fight him.
Amumu’s quite weak in the early stages of the game, making him very susceptible to counter
Incredibly strong early game duelist, great mobility, able to safely invade Amumu. He also has the added benefit of being able to kick Amumu away from your team if and when it’s necessary. If you constantly pressure him by invading, he’s going to have a very bad time. He can’t fight you until he gets his Runic Echoes, and if done properly he won’t get it until you’re far, far ahead.
Same concept as Lee Sin, except her
Kha’Zix has grown increasingly strong over the last couple of patches, and this makes him a great pick against Amumu. Yet again, it’s because of his very high
There’s really only one item to talk about here: Quicksilver Sash. Anyone can use it (even tanks, though that’s less than optimal, in my opinion), and it will be incredibly effective against Amumu. If he uses his bandage to get in, you can freely cleanse the ultimate that usually follows. If not, be sure to dodge the bandage after you cleanse his ultimate off.