Keeper's Verdict can be released immediately to send the enemy straight up, take advantage of this in duels.
Iron Ambassador tends to land near walls, try to take advantage of this with Heroic Charge.
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 highlight some important Poppy versus Karthus matchup stats that may help us distinguish the distinctions between the pair. For instance, Poppy’s KDA ratio ([kills + assists] / deaths) of NaN is more than Karthus’s KDA ratio of NaN, demonstrating that Poppy may be more central to her team's team fighting potential than Karthus..
Poppy typically has a slightly smaller longest killing spree than her opponent does. Typically, she takes a similar amount of damage to Karthus. This commonly reflects different amounts of tankyness; however, it can also indicate that the champion with increased health has less agility and thus is unable to escape further harm when engaged or poked.
Both League champions are great. Both have their pros and cons. In the game's current meta, Poppy usually wins when playing against Karthus, with a 53.4% win rate. As a result, Poppy makes a great counter to Karthus.
While Poppy does have a higher win rate than Karthus, when they face off with one another, Poppy also has a lower learning curve that makes her a less difficult champ to develop with. You should be be fine when picking Poppy into Karthus.
Moreover, Poppy has a great amount of CC and other utility, a similar amount to Karthus. This makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there is not one best champion overall in League of Legends, in Poppy vs Karthus matchups, Poppy is the better champion with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your allied champions during teamfights.
Poppy is a great counter for Karthus. Focus your actions on keeping up your CS and taking out objectives. If you are able to do that, you should be able to stand on your own as Poppy against Karthus.
If you would like to learn all of the intricacies of Poppy to counter Karthus during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you mind the build and tips displayed here, you should increase your win rate by a lot and be closer to League of Legends pro players.
Poppy on average gets a similar amount of CS as Karthus. Champs who on average don't take much CS often don't need much CS to be effective, such as support champions. They are able to scale properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, often require many items to be effective. In either situation, try to surpass the numbers shown on this page to do well.
The best items to prioritize in your Poppy versus Karthus build consist of Unending Despair, Kaenic Rookern, and Sunfire Aegis. When Poppy included at least these three pieces in her build, she performed significantly better when facing Karthus than with most other typical builds. In fact, Poppy boasted an average win rate of 53.4% battling Karthus with this build.
To have the highest probability of defeating Karthus as Poppy, Poppy players should take the Dark Harvest, Cheap Shot, Eyeball Collection, Relentless Hunter, Celerity, and Waterwalking runes from the Domination and Sorcery rune sets. Out of all the rune builds players picked for Poppy vs Karthus matchups, this mix of runes resulted in the highest win rate. Notably, these runes gave a 53.4% win rate overall.
By default, tips, statistics, and builds on how to beat Karthus as Poppy are given for every ranked division. If you would like to filter the stats and builds to a specific division, you should use the selection menu above.