Hitting multiple champions with the same ability can help quickly activate Darkness Rise.
Offense is your defense. Keep fighting to build up larger Indestructible shields.
Use Realm of Death on a low health enemy to guarantee the kill and keep their stats for the rest of a teamfight.
Karthus can cast spells for a short duration after he is killed. Move away from his corpse to be safe.
Make sure you always have enough health to survive Requiem, even if you have to go back to the base more frequently to heal.
The stat comparisons shown on this page feature some significant Mordekaiser vs. Karthus matchup stats that can help you interpret the differences between the two. For instance, Mordekaiser’s KDA ratio ([kills + assists] / deaths) of NaN is better than Karthus’s KDA ratio of NaN, demonstrating that Mordekaiser may be more central to his team's team fighting capability than Karthus..
Mordekaiser often has a similar longest killing spree as his opponent does. Typically, he receives more damage than Karthus. This is usually reflective of different amounts of tankyness; however, it can also imply that the champ with increased health has less agility and thus is not able to kite away from additional damage when engaged or poked.
Both League champs are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Mordekaiser usually wins when playing against Karthus, with a 53.8% win rate. Thus, Mordekaiser makes a great counter for Karthus.
While Mordekaiser does have a higher winrate compared to Karthus, when they face off with one another, Mordekaiser also has a lower difficulty level that makes him a less complex champion to learn. You should be be fine when picking Mordekaiser into Karthus.
Furthermore, Mordekaiser has some amount of utility and CC, a similar amount to Karthus. This makes her just as valuable during team fights, especially when facing champions with a lot of burst damage.
While there is not one best champion in League of Legends, in Mordekaiser vs Karthus matchups, Mordekaiser is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your team members during late stage team fights.
Mordekaiser is a great counter to Karthus. Focus your actions on keeping up your gold and cs and taking out objectives. If you can do that, you should do very well as Mordekaiser against Karthus.
To learn all of the intricacies of Mordekaiser in order to counter Karthus during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tips and tricks for this matchup. If you pay attention to the build and tips presented here, you should grow your win rate significantly and be closer to League of Legends pro players.
Mordekaiser on average gets more CS relative to Karthus. Champions who on average don't take many minion kills usualy don't need much CS to be effective, such as support champions. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often have to have many items to be effective. In either situation, try to exceed the values shown here to do well.
The top items to use in your Mordekaiser versus Karthus build consist of Spirit Visage, Riftmaker, and Jak'Sho, The Protean. When Mordekaiser bought at least these three pieces in his build, he did significantly better against Karthus than with many other commonly used builds. In fact, Mordekaiser boasted an average winrate of 53.8% when countering Karthus with this counter build.
To have the highest likelihood of coming out on top against Karthus as Mordekaiser, you should use the Conqueror, Triumph, Legend: Alacrity, Last Stand, Second Wind, and Revitalize runes from the Precision and Resolve rune sets. Out of all the rune combinations players used for Mordekaiser vs Karthus matchups, this combo of runes yielded the greatest win rate. Notably, these runes averaged a 53.8% win rate overall.
If you would like to view Mordekaiser versus Karthus tips and counter builds for a a distinct division, please choose one from the selection menu provided above. At first, the stats and guides given are calculated using every game played with both champs.