Best Karthus Counters and Counterpicks

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

Updated 2026-06-12. Data is current for LoL patch 26.12 (all regions, low elo and high elo).

Top 5 Low Elo Karthus Jungle same-role counters

Kayn Jungle - Low Elo data: Karthus Jungle vs Kayn Jungle, 44.7% observed win rate, -3.6 percentage points vs expected, 553 games, 3-patch window 26.10-26.12.
Master Yi Jungle - Low Elo data: Karthus Jungle vs Master Yi Jungle, 46.6% observed win rate, -1.8 percentage points vs expected, 502 games, 3-patch window 26.10-26.12.
Lee Sin Jungle - Low Elo data: Karthus Jungle vs Lee Sin Jungle, 50.5% observed win rate, +0.6 percentage points vs expected, 546 games, 3-patch window 26.10-26.12.
Nocturne Jungle - Low Elo data: Karthus Jungle vs Nocturne Jungle, 47.0% observed win rate, +1.0 percentage points vs expected, 542 games, 3-patch window 26.10-26.12.
Graves Jungle - Low Elo data: Karthus Jungle vs Graves Jungle, 49.7% observed win rate, +1.4 percentage points vs expected, 519 games, 3-patch window 26.10-26.12.

Top 10 Low Elo Karthus all-role counters

Kayn Jungle - Low Elo data: Karthus Jungle vs Kayn Jungle, 44.7% observed win rate, -3.6 percentage points vs expected, 553 games, 3-patch window 26.10-26.12.
Jhin ADC - Low Elo data: Karthus Jungle vs Jhin ADC, 45.5% observed win rate, -3.4 percentage points vs expected, 786 games, 3-patch window 26.10-26.12.
Seraphine Support - Low Elo data: Karthus Jungle vs Seraphine Support, 43.0% observed win rate, -3.2 percentage points vs expected, 675 games, 3-patch window 26.10-26.12.
Master Yi Jungle - Low Elo data: Karthus Jungle vs Master Yi Jungle, 46.6% observed win rate, -1.8 percentage points vs expected, 502 games, 3-patch window 26.10-26.12.
Caitlyn ADC - Low Elo data: Karthus Jungle vs Caitlyn ADC, 47.3% observed win rate, -1.7 percentage points vs expected, 1,112 games, 3-patch window 26.10-26.12.
Lux Support - Low Elo data: Karthus Jungle vs Lux Support, 47.8% observed win rate, -0.9 percentage points vs expected, 623 games, 3-patch window 26.10-26.12.
Ezreal ADC - Low Elo data: Karthus Jungle vs Ezreal ADC, 51.0% observed win rate, -0.5 percentage points vs expected, 731 games, 3-patch window 26.10-26.12.
Smolder ADC - Low Elo data: Karthus Jungle vs Smolder ADC, 45.0% observed win rate, -0.3 percentage points vs expected, 727 games, 3-patch window 26.10-26.12.
Jinx ADC - Low Elo data: Karthus Jungle vs Jinx ADC, 47.5% observed win rate, +0.2 percentage points vs expected, 657 games, 3-patch window 26.10-26.12.
Lee Sin Jungle - Low Elo data: Karthus Jungle vs Lee Sin Jungle, 50.5% observed win rate, +0.6 percentage points vs expected, 546 games, 3-patch window 26.10-26.12.

Top 2 High Elo Karthus Jungle same-role counters

Lee Sin Jungle - High Elo data: Karthus Jungle vs Lee Sin Jungle, 48.4% observed win rate, -0.2 percentage points vs expected, 574 games, 3-patch window 26.10-26.12.
Graves Jungle - High Elo data: Karthus Jungle vs Graves Jungle, 52.2% observed win rate, +3.0 percentage points vs expected, 592 games, 3-patch window 26.10-26.12.

Top 9 High Elo Karthus all-role counters

Ezreal ADC - High Elo data: Karthus Jungle vs Ezreal ADC, 47.7% observed win rate, -3.4 percentage points vs expected, 761 games, 3-patch window 26.10-26.12.
Nami Support - High Elo data: Karthus Jungle vs Nami Support, 46.4% observed win rate, -2.7 percentage points vs expected, 565 games, 3-patch window 26.10-26.12.
Jhin ADC - High Elo data: Karthus Jungle vs Jhin ADC, 47.6% observed win rate, -2.2 percentage points vs expected, 548 games, 3-patch window 26.10-26.12.
Caitlyn ADC - High Elo data: Karthus Jungle vs Caitlyn ADC, 48.8% observed win rate, -1.5 percentage points vs expected, 603 games, 3-patch window 26.10-26.12.
Ashe ADC - High Elo data: Karthus Jungle vs Ashe ADC, 47.1% observed win rate, -0.7 percentage points vs expected, 512 games, 3-patch window 26.10-26.12.
Lee Sin Jungle - High Elo data: Karthus Jungle vs Lee Sin Jungle, 48.4% observed win rate, -0.2 percentage points vs expected, 574 games, 3-patch window 26.10-26.12.
Ezreal ADC - High Elo data: Karthus ADC vs Ezreal ADC, 57.2% observed win rate, +1.0 percentage points vs expected, 558 games, 3-patch window 26.10-26.12.
Seraphine Support - High Elo data: Karthus Jungle vs Seraphine Support, 48.6% observed win rate, +1.6 percentage points vs expected, 504 games, 3-patch window 26.10-26.12.
Graves Jungle - High Elo data: Karthus Jungle vs Graves Jungle, 52.2% observed win rate, +3.0 percentage points vs expected, 592 games, 3-patch window 26.10-26.12.