Karthus Probuilds explained
Based on our LoL Jungle Tier List from pro builds at patch 15.14, 
Karthus – the Deathsinger – is a A-Tier champion. Among professional League of Legends players, Karthus is most often selected on the 
Jungle position. This is your source to learn all about Karthus Probuilds and to learn how to play Karthus. This page shows you how a pro builds Karthus in detail. Solo queue and tournament matches played by the best Karthus players are listed.
On the current patch pros on Karthus have won 7 out of 10 matches, resulting in a win rate of 70% and a pick rate of 0.6%. In 9.1% of the matches Karthus is banned, because it can be very unpleasant to have to play against the 
Mage. When Karthus is not banned and only the Karthus Probuilds are considered, the champion averages a KDA of 0.0 in professional players Solo Queue matches.
A Karthus probuild is best suited to counter Bel'Veth, to counter Zac or to counter Zed on the opposing team. With Karthus and the available probuilds, it is possible to minimize their strengths and exploit their weaknesses. On the other hand, 
Evelynn, 
Master Yi or 
Kindred lead to desperation for Karthus players. Learn from Pros how they counter pick Karthus.
In regards to runes for Karthus you can see that Domination and Sorcery are the rune paths, which are preferred by Pros.
FAQ for Karthus Probuilds
On which position do the most Karthus Probuilds exist?
Pros play Karthus mostly on position Jungle.
Do you have some tips besides the Karthus Probuilds?
Besides checking out the available Karthus Probuilds here are a few Karthus tips, if you are an ally or enemy:
- Ask your allies to help point out when you should use Requiem to get kills in different lanes.
- Lay Waste is very strong at farming minions and harassing enemy champions.
- 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.