Swain - League of Legends Champion
Win Rate
50.8%
Pick Rate
3.6%

Swainvs Karthus

AMageSupport
Patch26.10
Matches2,222,046
LaneAll Lanes
TierAll Tiers
Last UpdatedMay 21, 2026
MethodologyData Methodology

Swain vs Karthus is a decisive matchup in LoL patch 26.10. Karthus wins with a 66.7% win rate (+33.3%) over Swain based on 9 games. Karthus holds the advantage in both the early and late game. Below you'll find the best Swain build, runes, laning stats, and strategies for the Swain vs Karthus matchup.

Swain Matchup Breakdown

Use the dropdown to select an opponent and see a detailed breakdown of how Swain performs against them. You'll get head-to-head win rates, laning stats, the best build and runes for the matchup, and early vs late game analysis — all based on real ranked data.

Compare against an opponent
Karthus - 33.3% win rateKarthus(33.3%)
Swain - 33.3% win rate in this matchup
Swain
33.3% WR
VS
Karthus vs Swain matchup - 66.7% win rate
Karthus
66.7% WR

Who Wins the Swain vs Karthus Matchup?

Karthus wins the Swain vs Karthus matchup
Winner
Karthus
Matches: 9
33.3%
Win Rate
66.7%
5.5
CS / min
5.6
976
DMG / min
1,407
15,313
Gold / game
15,695
592
Heal / min
48
1,118
DMG Mitigated / min
437
1.7
CC / min
0.7
0.0%
Early Game WR
100.0%
42.9%
Late Game WR
57.1%

Swain vs Karthus Matchup Summary

The Swain vs Karthus matchup is a decisive matchup in League of Legends ranked play. Based on 9 recent matches analyzed, Karthus wins with a 66.7% win rate compared to Swain's 33.3%, giving Karthus a 33.3 percentage point advantage. Karthus dominates at every stage — from early laning through late game team fights. This consistent advantage makes it difficult for Swain players to find favorable windows, so team-dependent strategies and avoiding solo confrontations are essential. The most significant statistical gap is in sustain, where Swain leads by 1,225 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Karthus has a strong advantage in this matchup. Swain players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Karthus overextending. Avoid prolonged trades and wait for team fights where positioning and coordination matter more. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.

Swain vs Karthus Laning Phase Breakdown

Karthus wins the laning phase against Swain in League of Legends

Karthus is favored during the laning phase against Swain, winning 3 out of 5 key stat categories. Karthus holds advantages in farming, damage and gold income, making them the stronger laner in this matchup.

Farming
5.5Swain
5.6Karthus
Swain and Karthus farm at nearly identical rates in this matchup, with only a 0.1 CS/min difference. Neither champion holds a meaningful farming advantage, so lane dominance will come from trading and jungle interaction rather than CS leads.
Damage
976Swain
1,407Karthus
Karthus heavily out-damages Swain by 431 DMG/min, dominating both short trades and all-in fights. Swain should avoid extended combat and instead focus on burst trade patterns — short engages followed by immediate disengagement — to avoid letting Karthus's sustained damage advantage take over.
Economy
15,313Swain
15,695Karthus
Karthus earns 382 more gold per game than Swain, equivalent to roughly one additional component item. This economic edge comes from a combination of better farming, kill participation, and objective control, giving Karthus slightly faster item completions.
Utility
1.7Swain
0.7Karthus
Swain brings significantly more crowd control than Karthus, with 1.0 more seconds of CC per minute. This large utility gap makes Swain far more valuable in setting up jungle ganks, controlling objectives, and locking down targets in team fights. Karthus should invest in tenacity and position carefully to avoid being chain-CC'd.
Sustain
1,710Swain
484Karthus
Swain vastly out-sustains Karthus, healing and mitigating 1,225 more damage per minute. This massive durability gap means Swain can absorb significant punishment and remain in lane while Karthus is forced to recall. Building grievous wounds early is essential for Karthus, and focusing on burst trade patterns rather than sustained fights is critical.

Best Swain Build Against Karthus

Gluttonous Greaves is the optimal boots choice against Karthus, providing the mobility and stats Swain needs most in this matchup. The top-performing core items for Swain against Karthus are Liandry's Torment, Zhonya's Hourglass and Rylai's Crystal Scepter. This combination gives Swain an effective balance of damage, survivability, and utility for the matchup. This build performs exceptionally well, achieving a 100.0% win rate across 1 games — well above average and making it the top item path against Karthus. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Swain vs Karthus matchup.

Early Game vs Late Game

Early Game
Karthus
100.0%
+100.0% advantage
Swain early game win rateSwain0.0%
Karthus early game win rateKarthus100.0%
Late Game
Karthus
57.1%
+14.3% advantage
Swain late game win rateSwain42.9%
Karthus late game win rateKarthus57.1%

Karthus dominates the early game (first 15 minutes) with a commanding 100.0% win rate — a 100.0 percentage point lead over Swain. This lopsided early game means Karthus can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.

Karthus is far superior in the late game (25+ minutes), boasting a 57.1% win rate — 14.3 points above Swain. Extended games heavily favor Karthus, whose kit and scaling make them a dominant force in team fights and objective control.

Karthus holds the advantage at every stage of the game, making this a consistently favorable matchup from lane through late game team fights. Swain players should look for outplays, team-dependent strategies, and picks rather than relying on scaling to win this matchup.

Best Swain Runes Against Karthus

Precision rune tree - Swain primary runes vs KarthusPrecision
Conqueror - best Swain rune vs KarthusPresence of Mind - best Swain rune vs KarthusLegend: Haste - best Swain rune vs KarthusLast Stand - best Swain rune vs Karthus
Sorcery rune tree - Swain secondary runes vs KarthusSorcery
Axiom Arcanist - best Swain rune vs KarthusTranscendence - best Swain rune vs Karthus
100.0% WR

The Precision and Sorcery rune setup gives Swain the best tools to compete against Karthus in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.


Swain matchup data for League of Legends patch 26.10. The table below shows Swain's win rate, gold difference, and performance stats against every champion in the current meta. Click any champion name to see a detailed head-to-head breakdown including the best Swain build, runes, laning stats, and early vs late game analysis for that specific matchup.

Swain matchup win rates and stats in League of Legends patch 26.10
Opponent
Win Rate
Matches
CS/min
DMG/min
Gold/game
Early WR
Late WR
52.58%2912.466810,05949.2%55.0%
42.86%2872.06659,71538.2%46.3%
44.93%2072.36949,92237.6%50.9%
46.57%2041.875810,30846.7%46.5%
53.63%1791.87659,77451.2%55.8%
48.55%1731.86399,83748.6%48.5%
48.26%1722.970610,60944.4%51.0%
43.79%1695.997312,59150.8%39.4%
48.48%1651.76769,91454.1%45.2%
51.66%1511.881410,01851.5%51.8%
55.32%1415.587412,04558.6%52.1%
60.28%1416.092912,60963.3%58.0%
50.44%1131.972710,03742.0%57.1%
58.72%1091.87109,61461.4%55.8%
41.67%1081.86299,24844.2%40.0%
53.27%1073.269610,40539.5%62.5%
57.94%1072.49189,84664.2%51.9%
47.12%1045.189612,51660.6%40.9%
58.00%1001.878410,33850.0%62.9%
60.87%922.569010,31556.4%64.2%
51.11%905.788111,70250.0%52.0%
44.44%901.67209,33656.4%35.3%
60.67%892.47289,98267.6%55.8%
47.73%885.887811,42346.0%49.0%
51.14%885.993211,76454.0%49.0%
45.78%832.067610,17251.6%42.3%
60.24%835.885712,22159.5%61.0%
50.60%831.86729,55960.0%41.9%
50.62%815.085911,40748.4%52.0%
54.43%793.071110,16553.3%55.1%
53.16%791.86518,85545.2%62.2%
47.95%735.984410,11946.0%50.0%
50.00%725.791110,45451.4%48.6%
47.22%721.78309,79154.3%40.5%
46.97%661.75359,20450.0%44.7%
53.03%666.188611,53051.4%54.8%
43.08%655.187911,82147.8%40.5%
46.77%632.07749,80741.4%51.5%
42.62%615.884710,28134.5%50.0%
60.00%604.897510,91875.0%50.0%
40.00%606.096111,01830.4%46.0%
71.67%604.983411,19975.0%68.8%
35.59%592.181210,26029.2%40.0%
51.72%581.87289,55450.0%53.6%
54.39%571.67219,79360.9%50.0%
42.86%562.17439,74727.3%52.9%
48.08%521.77989,70870.8%28.6%
54.90%516.292412,61060.0%50.0%
64.00%504.386411,00052.6%71.0%
47.62%425.878410,07042.1%52.2%
33.33%425.689812,96446.1%27.6%
57.50%401.76549,07047.6%68.4%
53.85%395.91,01212,29761.1%47.6%
60.53%384.01,05611,60753.3%65.2%
57.89%385.985111,54363.6%55.6%
50.00%386.089711,07356.3%45.5%
51.35%375.789611,20963.2%38.9%
58.33%364.983011,85260.0%57.1%
38.89%365.77619,79236.4%42.9%
36.11%363.67949,05636.8%35.3%
51.43%355.785011,32946.7%55.0%
60.00%355.986110,80257.1%61.9%
45.71%355.68509,85760.0%26.7%
42.86%354.683311,67245.5%41.7%
41.18%341.86808,65252.9%29.4%
50.00%344.76999,67646.7%52.6%
42.42%336.61,01511,46140.0%43.5%
60.61%336.198111,39166.7%55.6%
45.16%315.686210,54741.7%47.4%
54.84%316.797511,90258.8%50.0%
51.61%315.191711,11453.3%50.0%
70.97%316.01,02112,83762.5%80.0%
60.00%305.91,04912,56843.8%78.6%
34.48%292.16418,64835.3%33.3%
72.41%296.386311,50178.6%66.7%
51.72%292.176910,05550.0%52.6%
39.29%283.984710,62922.2%47.4%
61.54%261.96799,99260.0%62.5%
42.31%265.793610,53358.3%28.6%
65.38%266.392712,79280.0%45.5%
50.00%264.288210,46872.7%33.3%
48.00%256.699013,51980.0%40.0%
36.00%255.91,01210,86930.8%41.7%
62.50%246.590311,54353.9%72.7%
50.00%244.685011,52271.4%41.2%
60.87%235.194610,57272.7%50.0%
54.55%226.078810,17936.4%72.7%
59.09%224.781610,63355.6%61.5%
50.00%226.297910,76250.0%50.0%
50.00%225.886411,68950.0%50.0%
45.45%226.096511,13654.5%36.4%
45.45%225.489111,28750.0%42.9%
40.91%225.17699,07028.6%62.5%
57.14%216.296113,64787.5%38.5%
38.10%215.284912,26725.0%46.1%
50.00%205.283710,32440.0%60.0%
45.00%205.878911,46933.3%54.5%
55.00%201.85788,85750.0%62.5%
50.00%206.51,07012,39945.5%55.6%
57.89%196.08789,00980.0%33.3%
47.37%195.57659,76036.4%62.5%
57.89%196.088512,56783.3%46.1%
63.16%195.31,01611,93675.0%60.0%
38.89%185.51,05812,73560.0%30.8%
41.18%175.583410,76057.1%30.0%
43.75%165.41,25411,56466.7%30.0%
50.00%165.81,0809,88166.7%28.6%
25.00%166.186310,24916.7%30.0%
66.67%156.37719,19066.7%66.7%
20.00%154.983311,00716.7%22.2%
50.00%146.592614,25375.0%40.0%
50.00%145.67809,87960.0%25.0%
35.71%145.482011,16533.3%36.4%
42.86%145.51,14012,71250.0%40.0%
30.77%136.075311,69620.0%37.5%
53.85%135.886010,89880.0%37.5%
53.85%135.282310,42771.4%33.3%
75.00%126.71,04611,50771.4%80.0%
41.67%126.19279,93250.0%33.3%
58.33%125.683510,61475.0%50.0%
66.67%124.095010,78280.0%57.1%
75.00%126.182311,76475.0%75.0%
58.33%121.46709,05980.0%42.9%
63.64%115.390711,32150.0%71.4%
54.55%115.288313,34250.0%55.6%
40.00%105.468411,69433.3%50.0%
60.00%105.979510,97366.7%57.1%
40.00%106.48809,07528.6%66.7%
60.00%106.583710,33871.4%33.3%
33.33%92.87429,25033.3%33.3%
77.78%95.080912,144100.0%75.0%
66.67%95.177310,88080.0%50.0%
55.56%93.597511,52666.7%50.0%
33.33%95.597615,3130.0%42.9%
37.50%86.491912,02450.0%33.3%
87.50%85.579010,18783.3%100.0%
42.86%75.188111,11033.3%50.0%
71.43%75.91,17613,43566.7%75.0%
71.43%72.17538,45560.0%100.0%
57.14%77.069710,18075.0%33.3%
42.86%73.693211,58625.0%66.7%
71.43%72.16988,92550.0%100.0%
16.67%62.976311,7740.0%20.0%
33.33%62.88449,60733.3%33.3%
50.00%62.61,08813,727100.0%40.0%
66.67%65.885610,36850.0%100.0%
50.00%64.469512,97750.0%50.0%
33.33%62.068610,8760.0%40.0%
40.00%53.070411,638100.0%0.0%
80.00%56.477511,002100.0%0.0%
40.00%54.01,05111,3690.0%50.0%

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Swain vs Karthus - Frequently Asked Questions

How does Swain do against Karthus in League of Legends?

Karthus wins the Swain vs Karthus matchup with a 66.7% win rate compared to Swain's 33.3%, a 33.3 percentage point difference. This data is based on 9 recent ranked games in patch 26.10.

How does Swain do against Karthus in the early game?

In the early game, Karthus has the advantage against Swain with a 100.0% win rate versus 0.0%. Karthus players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.

How does Swain do against Karthus in the late game?

In the late game, Karthus takes over the Swain vs Karthus matchup with a 57.1% win rate compared to 42.9%. Karthus scales better into team fights and objective contests after 25 minutes.

Who wins the Swain vs Karthus matchup?

Karthus wins the matchup against Swain with a 66.7% win rate in League of Legends patch 26.10. The 33.3 percentage point advantage means Karthus is significantly favored in this lane matchup based on 9 games analyzed.

What is the best Swain build against Karthus?

The best Swain build against Karthus includes Liandry's Torment, Zhonya's Hourglass, Rylai's Crystal Scepter with Gluttonous Greaves. This build achieves a 100.0% win rate in the matchup. Check the matchup breakdown above for the full item path and build order.

What are the best Swain runes against Karthus?

The best Swain runes against Karthus use the Precision primary tree with Sorcery secondary. This rune setup achieves a 100.0% win rate in the Swain vs Karthus matchup. See the full rune breakdown in the matchup comparison above.

Does Swain counter Karthus?

No, Swain struggles against Karthus with only a 33.3% win rate. Karthus has the advantage in this matchup. Swain players should focus on safe farming and avoiding extended trades to minimize Karthus's lead.

How do I play Swain against Karthus?

When playing Swain against Karthus, play cautiously and avoid Karthus's power spikes. Look for jungle assistance and team-dependent plays since Karthus has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.