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.
After using the more powerful, Awakened version of an ability, Udyr cannot Awaken other abilities for some time.
Udyr has limited ranged options, try to keep distance.
The stats provided here underscore several valuable Karthus versus Udyr matchup stats that can help us appreciate the distinctions between the two. Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Udyr’s KDA ratio of NaN, showing that Karthus may be more central to his team's team fighting potential than Udyr..
Karthus normally has a similar longest killing spree as his foe does. Commonly, he takes less damage than Udyr. This typically indicates different amounts of tankyness, but it can also hint that the one champ has less agility and thus is unable to flee from further damage when poked or engaged.
Both LoL champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Karthus usually loses when taking on Udyr, with a 45.9% win rate. Therefore, Karthus makes a bad counter to Udyr.
While Karthus does have a much lower win rate than Udyr, when facing one another, Karthus also has a greater difficulty level that makes him a more complex character to pick up and master. You may get destroyed when picking Karthus into Udyras his relative depth means that you may not be able to unleash his full potential without a lot of practice beforehand.
Moreover, Karthus has some amount of utility and CC, a similar amount to Udyr. This makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there isn't one best champion overall in League of Legends, in Karthus vs Udyr matchups, Udyr is the better champ with a much lower win rate, similar champion depth, and a similar amount of utility to help out your allied champions during team fights.
Karthus is a bad counter to Udyr. Focus your tactics on keeping up your gold and cs and destroying objectives. If you do that, you should be able to stand on your own as Karthus against Udyr.
If you would like to truly master Karthus in order to counter Udyr during both the laning 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 mind the build and suggestions presented here, you should increase your win rate significantly and be closer to League of Legends pro players.
Karthus usually picks up a similar amount of CS relative to Udyr. Champs who typically don't earn much CS usualy don't require much CS to be effective, such as support champions. These kinds of champions are able to scale properly off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often need several high cost items to be effective. In either case, try to surpass the values shown here to do well.
The top items to prioritize in your Karthus versus Udyr build include Rabadon's Deathcap, Void Staff, and Liandry's Torment. When Karthus used at least these three items in his build, he performed a lot better vs. Udyr than with most other commonly used counter builds. In fact, Karthus boasted an average winrate of 45.9% when countering Udyr with this counter build.
To have the greatest chance of vanquishing Udyr as Karthus, Karthus players should take the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand runes from the Domination and Precision rune sets. Out of all the rune builds players picked for Karthus vs Udyr counter picks, this composite of runes resulted in the greatest win rate. Notably, these runes provided a 45.9% win rate overall.
By default, tips, stats, and builds on how to beat Udyr as Karthus are displayed for every ranked division. If you want to narrow the stats and builds to a specific rank, you can use the selection menu earlier on the page.