Thanks to Karthus's K/D/A and utility, he has a somewhat poor overall win rate. He does very well in the late game, with a winrate of 54.4% in that phase. Unfortunately, he does terribly in the early game, where Karthus's winrate is 45.1%., The difference between his best and worst game phases is a large 9.3%. This sizeable difference shows us that his power spikes and fades in different parts of the round. Plan accordingly.
In the current meta, Karthus is not very popular. He has been used in only 2.7% of recently ranked matches. He is rarely banned during champ select. Obviously, very few players see him as a major threat. In recent ranked rounds, Karthus was banned 1.6% of the time.
You can find him typically used in the jungle position. However, that is not the best position for him. The best win rate position for Karthus is bottom (48,3%). Currently, Karthus's meta game is focused on dealing damage. In particular, his kit should mostly be centered around magical damage. Dealing physical damage is the least critical part of Karthus’s build.
You should anticipate having to dedicate a decent amount of time practicing and learning to master Karthus. Most League players believe he is an average difficulty champ to get good at. Karthus mostly causes magic damage (91% of his total damage). He doesn't deal much of other damage types and should not be considered a hybrid damage dealer..
Karthus deals tons of damage during a typical round (31 095 damage). You should focus on building him as a powerful champion to crush your opponents.
If you are looking for a dominating carry, then you should definitely consider this champ. He has one of the absolute best kill rates in League amongst all champions. Additionally, he has a relatively high average champion death count (7.4 deaths). Additionally, Karthus's KDA is typically average with an average KDA ratio of 2.2 as well as 9.6 assists per game.
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