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 here clarify several vital Fiddlesticks against Karthus matchup statistics that can help you grasp the differences and similarities between these two champs. Fiddlesticks’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Karthus’s ratio of NaN, demonstrating that Fiddlesticks may be more central to his team's team fighting capability than Karthus..
Fiddlesticks usually has a slightly smaller longest kill spree than his counter does. Typically, he takes more damage than Karthus. This typically indicates differing health capacities, yet it can also imply that the champ with increased health has less mobility and thus is unable to flee from additional harm when engaged or poked.
Both League of Legends champions are great champions. Both champs have their pros and cons. In the game's current meta, Fiddlesticks usually fairs equally well when playing against Karthus, with a 50.9% win rate. Therefore, Fiddlesticks makes an ok counter for Karthus.
While Fiddlesticks does have a higher win rate than Karthus, when on opposite teams, Fiddlesticks also has a greater level of difficulty that makes him a more difficult character to pick up and master. You still need to be cautious when picking Fiddlesticks into Karthusas his relative depth means you may not be able to unleash his full potential without a significant amount of practice beforehand.
Moreover, Fiddlesticks also has a good amount of CC and other utility, a similar amount to Karthus. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't one best champion in League of Legends, in Fiddlesticks vs Karthus matchups, Fiddlesticks is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your team members during teamfights.
Fiddlesticks is a decent counter for Karthus. You will do well by focussing your tactics on increasing your gold and cs and taking out objectives. If you do that, you should hold your own as Fiddlesticks against Karthus.
To learn all of the intricacies of Fiddlesticks in order to counter Karthus during both the lane 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 listen to the build and stats displayed here, you will increase your win rate significantly and be closer to League of Legends pro players.
Fiddlesticks usually racks up less CS relative to Karthus. Champions who on average don't take many minion kills often don't have to have much CS to be effective, such as sup champs. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically require several high cost items to be effective. In either case, try to exceed the values reported here to do well.
The top items to use in your Fiddlesticks versus Karthus build consist of Rabadon's Deathcap, Zhonya's Hourglass, and Stormsurge. When Fiddlesticks combined at least these three pieces in his build, he did much better versus Karthus than with most other common builds. In fact, Fiddlesticks had an average win rate of 50.9% when playing against Karthus with these items in his kit.
To have the best chance of annihilating Karthus as Fiddlesticks, Fiddlesticks players should take the First Strike, Triple Tonic, Future's Market, Cosmic Insight, Cheap Shot, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Of all the runes that we analyzed for Fiddlesticks vs Karthus counter picks, this blending of runes yielded the greatest win rate. Moreover, these runes provided a 50.9% win rate overall.
If you need to view Fiddlesticks versus Karthus tips and counter builds for a a specific skill level, feel free to select one from the selection menu shown above. If viewing for the first time, the stats and build suggestions shown are computed using every game with data with both champs.