Stats
Q
W
E
R
Emerald + tier, with a 45.90% win rate and a 1.57% pick rate. Current rank of the champion is 5 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 35-40 minutes with a 55.71% win rate and weakest at 25-30 minutes with a 40% win rate.Core Builds
   | 19.09%126 Games | 51.59% |
 | 9.85%65 Games | 50.77% |
 | 6.82%45 Games | 55.56% |
| 5.76%38 Games | 31.58% |
 | 5.3%35 Games | 37.14% |
| 4.24%28 Games | 32.14% |
 | 3.18%21 Games | 80.95% |
| 2.88%19 Games | 47.37% |
| 2.42%16 Games | 56.25% |
| 1.97%13 Games | 76.92% |
| 1.67%11 Games | 45.45% |
 | 1.67%11 Games | 45.45% |
| 1.67%11 Games | 63.64% |
| 1.21%8 Games | 37.5% |
| 1.21%8 Games | 37.5% |
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Boots
 | 97.65%748 Games | 45.59% |
 | 1.96%15 Games | 53.33% |
 | 0.39%3 Games | 100% |
Starter Items
  | 51.81%443 Games | 44.24% |
| 24.21%207 Games | 52.17% |
 | 14.39%123 Games | 40.65% |
| 6.9%59 Games | 47.46% |
 | 0.7%6 Games | 33.33% |
| 0.35%3 Games | 33.33% |
| 0.35%3 Games | 33.33% |
 | 0.35%3 Games | 66.67% |
 | 0.23%2 Games | 0% |
| 0.12%1 Games | 0% |
 2 | 0.12%1 Games | 100% |
| 0.12%1 Games | 100% |
2 | 0.12%1 Games | 100% |
 | 0.12%1 Games | 100% |
| 0.12%1 Games | 0% |
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Items
| 72.44%565 Games | 45.31% |
| 70.13%547 Games | 49.36% |
| 52.05%406 Games | 53.2% |
| 43.33%338 Games | 43.79% |
| 38.08%297 Games | 47.14% |
| 24.23%189 Games | 52.91% |
| 21.03%164 Games | 48.17% |
| 13.59%106 Games | 50% |
 | 7.31%57 Games | 84.21% |
 | 6.92%54 Games | 55.56% |
 | 4.36%34 Games | 23.53% |
 | 3.46%27 Games | 55.56% |
 | 2.18%17 Games | 52.94% |
 | 1.92%15 Games | 46.67% |
 | 1.03%8 Games | 50% |
 | 1.03%8 Games | 62.5% |
 | 0.9%7 Games | 57.14% |
 | 0.9%7 Games | 57.14% |
 | 0.51%4 Games | 25% |
 | 0.38%3 Games | 100% |
 | 0.38%3 Games | 33.33% |
 | 0.26%2 Games | 0% |
 | 0.26%2 Games | 0% |
 | 0.13%1 Games | 0% |