Stats
Q
W
E
R
Emerald + tier, with a 49.61% win rate and a 2.08% pick rate. Current rank of the champion is 4 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 0-25 minutes with a 50.87% win rate and weakest at 35-40 minutes with a 47.23% win rate.Core Builds
   | 21.31%26 Games | 46.15% |
 | 10.66%13 Games | 53.85% |
 | 6.56%8 Games | 50% |
| 6.56%8 Games | 37.5% |
 | 5.74%7 Games | 71.43% |
 | 4.92%6 Games | 33.33% |
| 3.28%4 Games | 50% |
| 3.28%4 Games | 0% |
| 3.28%4 Games | 25% |
| 2.46%3 Games | 33.33% |
 | 2.46%3 Games | 66.67% |
| 1.64%2 Games | 100% |
| 1.64%2 Games | 0% |
| 1.64%2 Games | 50% |
| 1.64%2 Games | 0% |
Boots
 | 100%154 Games | 42.21% |
Starter Items
  | 38.41%63 Games | 47.62% |
| 36.59%60 Games | 41.67% |
 | 14.63%24 Games | 29.17% |
| 9.15%15 Games | 53.33% |
| 0.61%1 Games | 0% |
 | 0.61%1 Games | 0% |
Items
| 86.23%144 Games | 41.67% |
| 65.87%110 Games | 45.45% |
| 50.3%84 Games | 42.86% |
| 38.92%65 Games | 43.08% |
| 26.35%44 Games | 43.18% |
| 25.75%43 Games | 37.21% |
| 16.77%28 Games | 53.57% |
| 16.17%27 Games | 55.56% |
 | 5.99%10 Games | 40% |
 | 5.39%9 Games | 55.56% |
 | 4.79%8 Games | 62.5% |
 | 2.4%4 Games | 25% |
 | 2.4%4 Games | 50% |
 | 2.4%4 Games | 25% |
 | 1.8%3 Games | 0% |
 | 1.2%2 Games | 50% |
 | 1.2%2 Games | 50% |
 | 0.6%1 Games | 100% |
 | 0.6%1 Games | 100% |
 | 0.6%1 Games | 0% |