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.
The stats shown here clarify several important Karthus versus Zeri counter statistics that can help us grasp the distinctions between the two. For instance, Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is better than Zeri’s ratio of NaN, showing that Karthus may be more central to his team's team fighting potential than Zeri..
Karthus normally has a similar longest kill spree as his matchup does. On average, he takes a similar amount of damage to Zeri. This commonly reflects different amounts of tankyness, yet it can also hint that the one champ has less agility and thus is not able to kite away from further harm when engaged or poked.
Both LoL champions are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Karthus usually loses when taking on Zeri, with a 47.5% win rate. As a result, Karthus makes a bad counter to Zeri.
While Karthus does have a lower winrate than Zeri, when they face off with one another, Karthus also has a greater level of difficulty that makes him a more complex champion to pick up and master. You should expect to face a difficult match when picking Karthus into Zerias his relative depth means that you may not be able to unleash his full potential without a lot of practice beforehand.
Additionally, Karthus has some amount of CC and other utility, a similar amount to Zeri. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't one best champion for every situation in League of Legends, in Karthus vs Zeri matchups, Zeri is the better champ with a lower win rate, more champion depth, and a similar amount of utility to help out your teammates during teamfights.
Karthus is a garbage counter for Zeri. Make sure you focus your actions on increasing your gold income and clearing objectives. If you can do that, you should be able to stand on your own as Karthus against Zeri.
To truly master Karthus in order to counter Zeri during both the laning and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tricks and insights into this matchup. If you mind the build and stats shown above, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Karthus most often gets less CS compared to Zeri. Champs who typically don't get many minion kills usualy don't need much CS to be effective, such as support champions. They are capable of scaling properly off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often need a lot of items to be effective. In either case, try to surpass the values displayed here to do well.
The most crucial items to have in your Karthus versus Zeri build include Liandry's Anguish, Void Staff, and Shadowflame. When Karthus combined at least these three pieces in his build, he did a lot better when facing Zeri than with many other commonly used counter builds. In fact, Karthus boasted an average winrate of 47.5% when countering Zeri with this build.
To have the greatest likelihood of beating Zeri as Karthus, you should use the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand runes from the Domination and Precision rune sets. Of all the runes players used for Karthus vs Zeri fights, this combo of runes resulted in the highest win rate. In fact, these runes provided a 47.5% win rate overall.
By default, tips, statistics, and builds on how to beat Zeri as Karthus are presented for all skill levels, merged. To narrow the statistics and builds to a distinct skill level, you can use the selection menu located above.