Stats
Q
W
E
R
Emerald + tier, with a 50.43% win rate and a 2.13% pick rate. Current rank of the champion is 3 Tier, and the most popular core items include 
(
, 
, 
, 
) for primary path and 
(
, 
) for secondary path.
Karthus strong against 
, 
and but weak against Karthus include 
, 
, and .
Karthus performs strongest at 40+ minutes with a 58.06% win rate and weakest at 35-40 minutes with a 37.18% win rate.Core Builds
   | 20.36%102 Games | 49.02% |
 | 11.38%57 Games | 50.88% |
| 9.58%48 Games | 45.83% |
 | 7.58%38 Games | 52.63% |
| 6.99%35 Games | 57.14% |
 | 3.79%19 Games | 63.16% |
| 3.59%18 Games | 55.56% |
 | 2.99%15 Games | 40% |
| 2%10 Games | 60% |
| 1.8%9 Games | 22.22% |
| 1.8%9 Games | 33.33% |
| 1.6%8 Games | 37.5% |
 | 1.6%8 Games | 50% |
| 1.4%7 Games | 71.43% |
 | 1.2%6 Games | 100% |
Boots
 | 99.07%747 Games | 52.21% |
 | 0.4%3 Games | 0% |
 | 0.27%2 Games | 0% |
 | 0.13%1 Games | 100% |
 | 0.13%1 Games | 0% |
Starter Items
  | 59.33%480 Games | 51.04% |
| 25.71%208 Games | 47.6% |
 | 6.8%55 Games | 52.73% |
| 5.32%43 Games | 53.49% |
| 0.74%6 Games | 83.33% |
| 0.49%4 Games | 75% |
 | 0.37%3 Games | 100% |
 | 0.37%3 Games | 0% |
 | 0.25%2 Games | 50% |
| 0.25%2 Games | 0% |
 | 0.12%1 Games | 100% |
| 0.12%1 Games | 100% |
 | 0.12%1 Games | 100% |
Items
| 91.99%735 Games | 52.11% |
| 57.2%457 Games | 50.33% |
| 49.19%393 Games | 53.69% |
| 27.53%220 Games | 51.82% |
| 25.41%203 Games | 50.25% |
| 24.66%197 Games | 50.25% |
| 17.65%141 Games | 53.9% |
| 11.26%90 Games | 46.67% |
 | 6.63%53 Games | 45.28% |
| 4.38%35 Games | 97.14% |
 | 3.88%31 Games | 58.06% |
 | 3%24 Games | 50% |
 | 1.63%13 Games | 53.85% |
 | 1%8 Games | 75% |
 | 1%8 Games | 50% |
 | 0.88%7 Games | 42.86% |
 | 0.5%4 Games | 25% |
 | 0.38%3 Games | 100% |
 | 0.25%2 Games | 50% |
 | 0.13%1 Games | 100% |
 | 0.13%1 Games | 100% |
 | 0.13%1 Games | 100% |
 | 0.13%1 Games | 0% |