Lay Waste is very strong at farming minions and harassing enemy champions.
Ask your allies to help point out when you should use Requiem to get kills in different lanes.
Amumu's Despair makes purchasing primarily Health items a risky proposition.
Erratic movement, or hiding behind creep waves can make it difficult for Amumu to instigate a fight with Bandage Toss.
Avoid bunching up with other allies when Amumu has his ultimate available.
The stat comparisons shown on this page underscore several vital Karthus versus Amumu matchup statistics that can help us appreciate the differences and similarities between the pair. Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Amumu’s ratio of NaN, showing that Karthus may be more central to his team's team fighting effectiveness than Amumu..
Karthus normally has a slightly larger longest kill spree than his foe does. Typically, he receives less damage than Amumu. This often reflects different amounts of tankyness, yet it can also hint that the champion with higher health has less mobility and thus is unable to flee from additional damage when poked or engaged.
Both LoL champions are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Karthus usually fairs equally well when taking on Amumu, with a 49.5% win rate. Thus, Karthus makes an ok counter to Amumu.
While Karthus does have a lower win rate than Amumu, when on opposite teams, Karthus also has a much greater learning curve that makes him a more time consuming champion to pick up and master. You still need to be cautious when picking Karthus into Amumuas his relative depth means that you may not be able to reach his full potential without a lot of practice beforehand.
Furthermore, Karthus has some amount of utility and CC, a similar amount to Amumu. This makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there isn't one best champion for every situation in League of Legends, in Karthus vs Amumu matchups, Amumu is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your teammates during teamfights.
Karthus is a somewhat poor counter to Amumu. Make sure you focus your gameplay on increasing your gold and cs and clearing objectives. If you are able to do that, you should do very well as Karthus against Amumu.
If you would like to truly master Karthus to counter Amumu during both the early game and mid / late game phases of League of Legends, you should keep reading to learn a few extra tricks and insights into this matchup. If you pay attention to the build and suggestions presented here, you should grow your win rate significantly and be closer to League of Legends pro players.
Karthus usually picks up more CS as Amumu. Champs who on average don't get many minion kills often don't have to have much CS to be effective, such as sup champs. They are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often need a lot of items to be effective. In either case, try to surpass the numbers shown on this page to do well.
The most crucial items to use in your Karthus versus Amumu build consist of Rabadon's Deathcap, Shadowflame, and Liandry's Torment. When Karthus used at least these three pieces in his build, he did significantly better vs Amumu than with most other commonly used item sets. In fact, Karthus had an average winrate of 49.5% when countering Amumu with this counter build.
To have the best probability of vanquishing Amumu as Karthus, Karthus players should take the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Gathering Storm, and Transcendence runes from the Domination and Sorcery rune sets. Of all the runes players used for Karthus vs Amumu counter picks, this mix of runes resulted in the greatest win rate. Notably, these runes gave a 49.5% winrate overall.
By default, tips, stats, and builds on how to beat Amumu as Karthus are presented for all skill levels combined. To narrow the stats and builds to a specific division, you should use the selection menu located at the top of this page.