Garen is only constrained by cooldowns, making items such as Black Cleaver very effective for him.
Garen's regeneration greatly increases if he can avoid receiving damage for several seconds.
Judgment deals maximum damage when only hitting a single target. For effective trading, try to position such that only the enemy champion is hit.
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 provided here emphasize some significant Garen versus Karthus matchup statistics that can help you understand the differences between the pair. For instance, Garen’s KDA ratio ([kills + assists] / deaths) of NaN is better than Karthus’s KDA ratio of NaN, highlighting that Garen may be more central to his team's team fighting capacity than Karthus..
Garen often has a similar longest killing spree as his matchup does. On average, he receives more damage than Karthus. This commonly reflects differing health capacities; however, it can also illustrate that the one champ has less agility and thus is not able to kite away from further damage when engaged or poked.
Both LoL champs are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Garen usually wins when trying to fight Karthus, with a 51.7% win rate. Thus, Garen makes a good counter for Karthus.
While Garen does have a higher win rate compared to Karthus, when they face off with one another, Garen also has a lower difficulty level that makes him a less challenging champion to develop with. You still need to be cautious when picking Garen into Karthus.
Additionally, Garen has almost no amount of utility and CC, a similar amount to Karthus. 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 Garen vs Karthus matchups, Garen is the better champion with a higher win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Garen is a decent counter for Karthus. You will do well by focussing your strategy on keeping up your gold and cs and destroying objectives. If you can do that, you should be able to stand on your own as Garen against Karthus.
To learn all of the intricacies of Garen in order to counter Karthus during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you pay attention to the build and tips shown here, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Garen on average accumulates more CS relative to Karthus. Champs who on average don't get many minion kills often don't have to have much CS to be effective, such as supports. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, usually need several high cost items to be effective. In either case, try to exceed the numbers reported on this page to do well.
The best items to prioritize in your Garen versus Karthus build include Trinity Force, Sundered Sky, and Stridebreaker. When Garen used at least these three pieces in his build, he did significantly better vs. Karthus than with many other typical item sets. In fact, Garen had an average win rate of 51.7% when playing against Karthus with these items in his kit.
To have the greatest probability of crushing Karthus as Garen, Garen players should use the Conqueror, Triumph, Legend: Tenacity, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the runes we have analyed for Garen vs Karthus counters, this mixture of runes yielded the best win rate. Notably, these runes averaged a 51.7% winrate overall.
By default, tips, statistics, and builds on how to beat Karthus as Garen are given for all ranked divisions combined. If you would like to scope the stats and builds to an individual skill level, you may use the selection menu located earlier on the page.