Karthus, League of Legends champion
Win Rate
50.3%
Pick Rate
0.7%
Ban Rate
0.6%

Karthus Jungle Runes: Keystone & Shards

Karthus C TierMage
Patch
26.20
Games
907
Lane
Jungle
Tier
All Tiers
Last Updated
Oct 13, 2026 UTC
Methodology
Data Methodology

Best Jungle Karthus runes for LoL Patch 26.20 - Dark Harvest from the Domination tree with Sorcery secondary (52.5% WR, 35.5% pick rate). Karthus's optimal primary runes are Dark Harvest, Cheap Shot, Grisly Mementos, Ultimate Hunter. Secondary tree: Axiom Arcanist, Gathering Storm.

Karthus performs best with Dark Harvest as the keystone rune from the Domination tree. Karthus's optimal primary runes are Dark Harvest, Cheap Shot, Grisly Mementos, Ultimate Hunter. Karthus's secondary rune tree is Sorcery with Axiom Arcanist, Gathering Storm. This rune setup achieves a 52.48% win rate (+2.2% win rate difference) with a 35.5% pick rate across 322 Karthus games.
52.5%Win Rate
+2.2%WR Diff
35.5%Pick Rate
Dark HarvestDark Harvest

Damaging a Champion below 50% health deals adaptive damage and harvests their soul, permanently increasing Dark Harvest's damage by 11.

Dark Harvest damage: 30 (+11 damage per soul) (+0.1 bonus AD) (+0.05 AP)
Cooldown: 35s (resets to 1.0s on takedown)

Cheap ShotCheap Shot

Damaging champions with impaired movement or actions deals 10 - 45 bonus true damage (based on level).

Cooldown: 4s
Activates on damage occurring after the impairment.

Grisly MementosGrisly Mementos

Collect 1 memento on champion takedowns, up to 18 total.

Gain 6 Trinket Haste for each collected. In game modes where vision Trinkets do not exist, instead gain 3 Summoner Spell Haste.

Ultimate HunterUltimate Hunter

Your ultimate gains 6 Ability Haste, plus an additional 5 Ability Haste per Bounty Hunter stack. Bounty Hunter stacks are earned the first time you get a takedown on each enemy champion.

Axiom ArcanistAxiom Arcanist

Your Ultimate has 12% increased damage, healing, and shielding.
(AoE damage is reduced to a 8% increase)

Scoring a takedown on an enemy champion reduces your Ultimate's current cooldown by 7%.

Gathering StormGathering Storm

Every 10 min gain AP or AD, adaptive.

10 min: + 8 AP or 5 AD
20 min: + 24 AP or 14 AD
30 min: + 48 AP or 29 AD
40 min: + 80 AP or 48 AD
50 min: + 120 AP or 72 AD
60 min: + 168 AP or 101 AD
etc...

This alternative Karthus rune build uses Deathfire Touch as the keystone from the Sorcery tree. The primary runes are Deathfire Touch, Axiom Arcanist, Absolute Focus, Gathering Storm. Karthus's secondary rune tree is Precision with Triumph, Last Stand. This setup achieves a 53.85% win rate (+3.6% win rate difference) with a 7.2% pick rate across 65 games.
53.8%Win Rate
+3.6%WR Diff
7.2%Pick Rate
Deathfire TouchDeathfire Touch

Damaging a champion with an ability burns them for 3 - 12 based on level (+2.5% AP) (+7% bonus AD) magic damage per second. After burning for 3 seconds, the damage of the burn increases by 75% while they remain on fire.

Duration:
Single Target: 4s
Area of Effect: 2s
Damage over Time: 1s

Axiom ArcanistAxiom Arcanist

Your Ultimate has 12% increased damage, healing, and shielding.
(AoE damage is reduced to a 8% increase)

Scoring a takedown on an enemy champion reduces your Ultimate's current cooldown by 7%.

Absolute FocusAbsolute Focus

While above 70% health, gain an adaptive bonus of up to 18 Attack Damage or 30 Ability Power (based on level).

Grants 1.8 Attack Damage or 3 Ability Power at level 1.

Gathering StormGathering Storm

Every 10 min gain AP or AD, adaptive.

10 min: + 8 AP or 5 AD
20 min: + 24 AP or 14 AD
30 min: + 48 AP or 29 AD
40 min: + 80 AP or 48 AD
50 min: + 120 AP or 72 AD
60 min: + 168 AP or 101 AD
etc...

TriumphTriumph

Takedowns restore 5% of your missing health, 2.5% of your max health, and grant an additional 20 gold.



'The most dangerous game brings the greatest glory.'
—Noxian Reckoner

Last StandLast Stand

Deal 5% - 11% increased damage to champions while you are below 60% health. Max damage gained at 30% health.

These champions share at least 4 runes with Karthus's recommended rune builds. use similar keystone and secondary runes, making them good alternatives if you enjoy Karthus's playstyle or want to learn champions with familiar rune setups.Cho'Gath, Fiddlesticks

Every Karthus Jungle Keystone and Secondary Tree (Patch 26.20)

881 games

Karthus Jungle runs Dark Harvest in 64% of games, with a 49.8% win rate. Sorcery is the usual secondary tree (48%). Standard stat shards: Adaptive Force (offense), Adaptive Force (flex), Health Scaling (defense).

Keystones

RunePlayersWin RateGames
Dark HarvestDark HarvestMost played64.2%49.8%566
Deathfire TouchDeathfire Touch27.8%51.8%245
First StrikeFirst Strike7.0%48.4%62

Secondary trees

RunePlayersWin RateGames
SorcerySorceryMost played48.4%52.3%426
PrecisionPrecision46.8%49.3%412

Pick rate is the share of Karthus games in this lane that used the rune; options under 40 games are left out. A higher win rate on a rarely picked rune is usually a matchup-specific choice, not a general upgrade.

Karthus Minor Runes by Tree

Every minor rune Karthus players take, grouped by rune tree, with how often it is picked and how often it wins.

Sorcery

RunePlayersWin RateGames
Axiom ArcanistAxiom ArcanistMost played75.7%52.0%667
Gathering StormGathering Storm73.1%52.6%644
Absolute FocusAbsolute Focus22.0%52.1%194
TranscendenceTranscendence7.0%50.0%62

Domination

RunePlayersWin RateGames
Cheap ShotCheap ShotMost played65.2%49.7%574
Grisly MementosGrisly Mementos54.1%48.8%477
Ultimate HunterUltimate Hunter49.7%50.9%438
Treasure HunterTreasure Hunter18.3%45.3%161
Sixth SenseSixth Sense10.4%54.3%92

Precision

RunePlayersWin RateGames
Last StandLast StandMost played31.0%53.8%273
TriumphTriumph26.2%58.0%231
Presence of MindPresence of Mind18.7%38.2%165
Coup de GraceCoup de Grace14.4%39.4%127

Inspiration

RunePlayersWin RateGames
Triple TonicTriple TonicMost played7.3%50.0%64
Cosmic InsightCosmic Insight6.9%45.9%61
Cash BackCash Back6.9%45.9%61

Karthus Stat Shards

Which stat shards Karthus players choose in each of the three shard rows, and the win rate of each.

RunePlayersWin RateGames
Adaptive Force (flex)Adaptive Force (flex)Most played99.4%50.3%876
Adaptive Force (offense)Adaptive Force (offense)92.5%49.4%815
Health Scaling (defense)Health Scaling (defense)79.3%48.2%699
Health (defense)Health (defense)19.2%59.2%169
Ability Haste (offense)Ability Haste (offense)6.8%60.0%60
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Karthus Runes FAQ - Patch 26.20

What is the best keystone for Karthus Jungle?

Dark Harvest: Karthus Jungle takes it in 64% of ranked games and wins 49.8% of 566 games. Alternatives: Deathfire Touch (28%, 51.8%), First Strike (7%, 48.4%).

What stat shards should Karthus take?

Most Karthus players take Adaptive Force (offense), Adaptive Force (flex), Health Scaling (defense) — one from each shard row.

What are the best Karthus runes in patch 26.20?

The best Karthus runes in patch 26.20 use the Domination tree with Dark Harvest, Cheap Shot, Grisly Mementos, and Ultimate Hunter, and the Sorcery tree with Axiom Arcanist and Gathering Storm. This rune setup achieves a 52.5% win rate with a 35.5% pick rate.

What is the win rate for Karthus's best rune page?

Karthus's best rune page has a 52.5% win rate in patch 26.20, which is +2.2% compared to Karthus's average win rate. This rune setup has a 35.5% pick rate among Karthus players.

What keystone should I use on Karthus?

Dark Harvest from the Domination tree is the best keystone rune for Karthus in patch 26.20. This keystone synergizes well with Karthus's kit and provides a 52.5% win rate.

What is Karthus's primary rune tree?

Karthus's primary rune tree is Domination. The optimal Domination runes for Karthus are Dark Harvest, Cheap Shot, Grisly Mementos, and Ultimate Hunter, with Dark Harvest being the keystone of choice.

What is Karthus's secondary rune tree?

Karthus's best secondary rune tree is Sorcery. The recommended Sorcery runes are Axiom Arcanist and Gathering Storm, which complement Karthus's Domination primary tree.

What are alternative rune setups for Karthus?

An alternative Karthus rune setup uses Deathfire Touch from the Sorcery tree. This alternate build may be preferred in certain matchups or playstyles. Check the alternative rune page above for full details including win rate and pick rate.

How popular are Karthus's runes?

Karthus's top rune page has a 35.5% pick rate in patch 26.20. This indicates that 35.5% of Karthus players use the Dark Harvest setup with Domination and Sorcery trees.