Best Karthus Counters and Counterpicks

Use RiftMind to compare Karthus counters, matchup deltas, observed win rates, expected win rates, role-specific counterpick data, and champions Karthus is good against for low and high Elo League of Legends drafts.

Updated 2026-09-20. Data is current for LoL patch 26.18 (all regions, low elo and high elo).

How these matchup statistics are calculated

Counter and synergy statistics use Ranked Solo/Duo games, exclude matches shorter than 600 seconds, and group results by patch window, region, rank scope, and champion role.

Pairwise pages use a rolling three-patch window and compare observed win rate with a log-odds expected win rate based on each champion's role-adjusted baseline; listed pairs require at least 500 games.

Read the full methodology for the model and guidance on interpreting these results.

Summary

Low Elo data lists Kayn Jungle, Master Yi Jungle, Shyvana Jungle, Sylas Jungle, Nocturne Jungle, and Lee Sin Jungle as the strongest counters for Karthus. Karthus is listed as favorable into Briar Jungle, Vi Jungle, Graves Jungle, Viego Jungle, Warwick Jungle, and Shaco Jungle. The detailed info below lists each matchup with observed win rate, expected win rate delta, sample size, rank scope, and patch window.

Detailed info:

Top 6 Low Elo Karthus Jungle same-role counters

  1. Kayn Jungle - Low Elo data: Karthus Jungle vs Kayn Jungle, 45.5% observed win rate, -3.0 percentage points vs expected, 987 games, 3-patch window 26.16-26.18.
  2. Master Yi Jungle - Low Elo data: Karthus Jungle vs Master Yi Jungle, 47.1% observed win rate, -2.4 percentage points vs expected, 811 games, 3-patch window 26.16-26.18.
  3. Shyvana Jungle - Low Elo data: Karthus Jungle vs Shyvana Jungle, 44.7% observed win rate, -1.2 percentage points vs expected, 586 games, 3-patch window 26.16-26.18.
  4. Sylas Jungle - Low Elo data: Karthus Jungle vs Sylas Jungle, 48.4% observed win rate, -1.0 percentage points vs expected, 587 games, 3-patch window 26.16-26.18.
  5. Nocturne Jungle - Low Elo data: Karthus Jungle vs Nocturne Jungle, 46.6% observed win rate, -0.9 percentage points vs expected, 835 games, 3-patch window 26.16-26.18.
  6. Lee Sin Jungle - Low Elo data: Karthus Jungle vs Lee Sin Jungle, 51.2% observed win rate, -0.2 percentage points vs expected, 880 games, 3-patch window 26.16-26.18.

Top 6 Low Elo champions Karthus Jungle is good against

  1. Briar Jungle - Low Elo data: Karthus Jungle vs Briar Jungle, 54.1% observed win rate, +7.7 percentage points vs expected, 639 games, 3-patch window 26.16-26.18.
  2. Vi Jungle - Low Elo data: Karthus Jungle vs Vi Jungle, 51.0% observed win rate, +1.5 percentage points vs expected, 506 games, 3-patch window 26.16-26.18.
  3. Graves Jungle - Low Elo data: Karthus Jungle vs Graves Jungle, 50.4% observed win rate, +1.5 percentage points vs expected, 982 games, 3-patch window 26.16-26.18.
  4. Viego Jungle - Low Elo data: Karthus Jungle vs Viego Jungle, 50.9% observed win rate, +1.4 percentage points vs expected, 926 games, 3-patch window 26.16-26.18.
  5. Warwick Jungle - Low Elo data: Karthus Jungle vs Warwick Jungle, 48.1% observed win rate, +1.2 percentage points vs expected, 572 games, 3-patch window 26.16-26.18.
  6. Shaco Jungle - Low Elo data: Karthus Jungle vs Shaco Jungle, 50.5% observed win rate, +1.1 percentage points vs expected, 754 games, 3-patch window 26.16-26.18.

Top 10 Low Elo Karthus all-role counters

  1. Senna Support - Low Elo data: Karthus Jungle vs Senna Support, 41.6% observed win rate, -6.7 percentage points vs expected, 560 games, 3-patch window 26.16-26.18.
  2. Kayn Jungle - Low Elo data: Karthus Jungle vs Kayn Jungle, 45.5% observed win rate, -3.0 percentage points vs expected, 987 games, 3-patch window 26.16-26.18.
  3. Ezreal ADC - Low Elo data: Karthus Jungle vs Ezreal ADC, 49.9% observed win rate, -2.7 percentage points vs expected, 1,112 games, 3-patch window 26.16-26.18.
  4. Master Yi Jungle - Low Elo data: Karthus Jungle vs Master Yi Jungle, 47.1% observed win rate, -2.4 percentage points vs expected, 811 games, 3-patch window 26.16-26.18.
  5. Yone Mid - Low Elo data: Karthus Jungle vs Yone Mid, 46.6% observed win rate, -2.0 percentage points vs expected, 832 games, 3-patch window 26.16-26.18.
  6. Lux Mid - Low Elo data: Karthus Jungle vs Lux Mid, 45.2% observed win rate, -1.9 percentage points vs expected, 551 games, 3-patch window 26.16-26.18.
  7. Locke Mid - Low Elo data: Karthus Jungle vs Locke Mid, 49.3% observed win rate, -1.7 percentage points vs expected, 550 games, 3-patch window 26.16-26.18.
  8. Blitzcrank Support - Low Elo data: Karthus Jungle vs Blitzcrank Support, 46.8% observed win rate, -1.6 percentage points vs expected, 573 games, 3-patch window 26.16-26.18.
  9. Nautilus Support - Low Elo data: Karthus Jungle vs Nautilus Support, 48.0% observed win rate, -1.4 percentage points vs expected, 1,087 games, 3-patch window 26.16-26.18.
  10. Fizz Mid - Low Elo data: Karthus Jungle vs Fizz Mid, 45.6% observed win rate, -1.4 percentage points vs expected, 654 games, 3-patch window 26.16-26.18.

Top 10 Low Elo all-role champions Karthus is good against

  1. Briar Jungle - Low Elo data: Karthus Jungle vs Briar Jungle, 54.1% observed win rate, +7.7 percentage points vs expected, 639 games, 3-patch window 26.16-26.18.
  2. Ashe ADC - Low Elo data: Karthus Jungle vs Ashe ADC, 54.2% observed win rate, +4.9 percentage points vs expected, 890 games, 3-patch window 26.16-26.18.
  3. Veigar Mid - Low Elo data: Karthus Jungle vs Veigar Mid, 51.1% observed win rate, +3.7 percentage points vs expected, 738 games, 3-patch window 26.16-26.18.
  4. Yone Top - Low Elo data: Karthus Jungle vs Yone Top, 52.1% observed win rate, +3.5 percentage points vs expected, 739 games, 3-patch window 26.16-26.18.
  5. Jax Top - Low Elo data: Karthus Jungle vs Jax Top, 52.6% observed win rate, +3.0 percentage points vs expected, 529 games, 3-patch window 26.16-26.18.
  6. Seraphine Support - Low Elo data: Karthus Jungle vs Seraphine Support, 50.2% observed win rate, +2.4 percentage points vs expected, 1,128 games, 3-patch window 26.16-26.18.
  7. Malphite Top - Low Elo data: Karthus Jungle vs Malphite Top, 49.5% observed win rate, +2.1 percentage points vs expected, 691 games, 3-patch window 26.16-26.18.
  8. Vayne ADC - Low Elo data: Karthus Jungle vs Vayne ADC, 52.3% observed win rate, +2.1 percentage points vs expected, 514 games, 3-patch window 26.16-26.18.
  9. Ahri Mid - Low Elo data: Karthus Jungle vs Ahri Mid, 49.9% observed win rate, +1.8 percentage points vs expected, 880 games, 3-patch window 26.16-26.18.
  10. Teemo Top - Low Elo data: Karthus Jungle vs Teemo Top, 48.6% observed win rate, +1.6 percentage points vs expected, 765 games, 3-patch window 26.16-26.18.

Top 2 High Elo Karthus Jungle same-role counters

  1. Talon Jungle - High Elo data: Karthus Jungle vs Talon Jungle, 47.4% observed win rate, -1.1 percentage points vs expected, 578 games, 3-patch window 26.16-26.18.
  2. Lee Sin Jungle - High Elo data: Karthus Jungle vs Lee Sin Jungle, 49.7% observed win rate, -0.9 percentage points vs expected, 983 games, 3-patch window 26.16-26.18.

Top 2 High Elo champions Karthus Jungle is good against

  1. Graves Jungle - High Elo data: Karthus Jungle vs Graves Jungle, 51.9% observed win rate, +1.5 percentage points vs expected, 886 games, 3-patch window 26.16-26.18.
  2. Viego Jungle - High Elo data: Karthus Jungle vs Viego Jungle, 52.5% observed win rate, +0.6 percentage points vs expected, 589 games, 3-patch window 26.16-26.18.

Top 10 High Elo Karthus all-role counters

  1. Zed Mid - High Elo data: Karthus Jungle vs Zed Mid, 44.3% observed win rate, -5.7 percentage points vs expected, 607 games, 3-patch window 26.16-26.18.
  2. Lee Sin Jungle - High Elo data: Karthus ADC vs Lee Sin Jungle, 49.0% observed win rate, -5.6 percentage points vs expected, 526 games, 3-patch window 26.16-26.18.
  3. Lucian ADC - High Elo data: Karthus Jungle vs Lucian ADC, 46.9% observed win rate, -4.6 percentage points vs expected, 571 games, 3-patch window 26.16-26.18.
  4. Karma Support - High Elo data: Karthus Jungle vs Karma Support, 47.6% observed win rate, -3.7 percentage points vs expected, 624 games, 3-patch window 26.16-26.18.
  5. Seraphine Support - High Elo data: Karthus Jungle vs Seraphine Support, 46.4% observed win rate, -3.4 percentage points vs expected, 623 games, 3-patch window 26.16-26.18.
  6. Ezreal ADC - High Elo data: Karthus Jungle vs Ezreal ADC, 50.9% observed win rate, -3.0 percentage points vs expected, 858 games, 3-patch window 26.16-26.18.
  7. Caitlyn ADC - High Elo data: Karthus Jungle vs Caitlyn ADC, 48.4% observed win rate, -2.9 percentage points vs expected, 886 games, 3-patch window 26.16-26.18.
  8. Nasus Top - High Elo data: Karthus Jungle vs Nasus Top, 46.6% observed win rate, -2.7 percentage points vs expected, 567 games, 3-patch window 26.16-26.18.
  9. Nami Support - High Elo data: Karthus Jungle vs Nami Support, 47.9% observed win rate, -2.1 percentage points vs expected, 716 games, 3-patch window 26.16-26.18.
  10. Soraka Support - High Elo data: Karthus Jungle vs Soraka Support, 48.3% observed win rate, -1.7 percentage points vs expected, 532 games, 3-patch window 26.16-26.18.

Top 10 High Elo all-role champions Karthus is good against

  1. Yunara ADC - High Elo data: Karthus Jungle vs Yunara ADC, 54.2% observed win rate, +4.4 percentage points vs expected, 801 games, 3-patch window 26.16-26.18.
  2. Jinx ADC - High Elo data: Karthus ADC vs Jinx ADC, 56.2% observed win rate, +3.9 percentage points vs expected, 555 games, 3-patch window 26.16-26.18.
  3. Kai'Sa ADC - High Elo data: Karthus Jungle vs Kai'Sa ADC, 54.1% observed win rate, +3.4 percentage points vs expected, 1,523 games, 3-patch window 26.16-26.18.
  4. Lulu Support - High Elo data: Karthus Jungle vs Lulu Support, 52.9% observed win rate, +2.7 percentage points vs expected, 946 games, 3-patch window 26.16-26.18.
  5. Nautilus Support - High Elo data: Karthus Jungle vs Nautilus Support, 53.0% observed win rate, +2.7 percentage points vs expected, 775 games, 3-patch window 26.16-26.18.
  6. Bard Support - High Elo data: Karthus Jungle vs Bard Support, 52.3% observed win rate, +1.8 percentage points vs expected, 520 games, 3-patch window 26.16-26.18.
  7. Graves Jungle - High Elo data: Karthus Jungle vs Graves Jungle, 51.9% observed win rate, +1.5 percentage points vs expected, 886 games, 3-patch window 26.16-26.18.
  8. Viktor Mid - High Elo data: Karthus Jungle vs Viktor Mid, 51.4% observed win rate, +1.2 percentage points vs expected, 652 games, 3-patch window 26.16-26.18.
  9. Thresh Support - High Elo data: Karthus Jungle vs Thresh Support, 49.3% observed win rate, +1.1 percentage points vs expected, 1,008 games, 3-patch window 26.16-26.18.
  10. Leona Support - High Elo data: Karthus Jungle vs Leona Support, 49.4% observed win rate, +0.9 percentage points vs expected, 581 games, 3-patch window 26.16-26.18.