Win Rate
50.6%
Pick Rate
1.0%
KarthusArena Stats
Patch26.17
Matches693,760
LaneAll Lanes
TierAll Tiers
Last UpdatedAug 31, 2026 UTC
MethodologyData Methodology
AuthorDakota Chinnick
Patch 26.17 Karthus arena mode stats show Karthus with a 18.1% win rate and a 3.33 average placement in arena mode. Discover Karthus's best duo partners, augments, and arena builds to dominate the meta.
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Karthus Arena Performance
B18.1%Win Rate (1st)
36.3%Top 2 Rate
3.3Avg Placement
0.7%Pick Rate
Combat Stats
8.6Kills
8.5Deaths
12.5Assists
Karthus is a B tier champion in League of Legends Arena with a 18.1% win rate (1st place) and a 36.3% top 2 rate. Karthus averages 3.3 placement across all matches. Best duo partners include Samira, Fiora, Kayn.
Discover the highest performing Arena augments for Karthus in League of Legends Patch 16.17. The strongest augment choices include It's Killing Time, Jeweled Gauntlet, Phenomenal Evil, which provide significant advantages in 3v3v3v3v3v3 combat. When offered Prismatic augments, prioritize Jeweled Gauntlet. For Gold augments, It's Killing Time synergizes well with Karthus's kit. Use the rarity filters below to find the best Silver, Gold, and Prismatic augments for your Karthus Arena games.
AA Tier(1)
5.2%Pick Rate
Ultimate Revolution
Once per round, refresh your Ultimate after casting it.
BB Tier(3)
27.4%Pick Rate
Jeweled Gauntlet
Your Abilities can Critically Strike. Gain ?% Crit Chance.
10.6%Pick Rate
Quest: Wooglet's Witchcap
Immediate: Gain Needlessly Large Rod.Requirement: Possess Rabadon's Deathcap and Zhonya's Hourglass.Reward: Gain Wooglet's Witchcap.
9.6%Pick Rate
Augmented Power
Increase the damage done by your augments and items by ?.
CC Tier(6)
13.5%Pick Rate
Spellwake
Hitting enemies with Abilities creates a blast that deals magic damage from you to the location you hit them.
8.5%Pick Rate
Doomsayer
Hitting an enemy champion with an ability hits grant you permanent Cursed Power. Gain Adaptive Force based on your Cursed Power.
28.0%Pick Rate
It's Killing Time
After casting your Ultimate, mark all enemy champions for death. While marked, store damage dealt to them, and detonate the damage when the mark ends.
11.0%Pick Rate
From Beginning to End
Gain the First Strike and Dark Harvest Keystone Runes.
7.6%Pick Rate
Big Brain
At the start of each round, gain 1 Shield for every 1 Ability Power.
7.0%Pick Rate
Vulnerability
Your Item and damage over time effects can Critically Strike. Gain 25% Crit chance.
DD Tier(8)
13.4%Pick Rate
Infernal Conduit
Your Abilities apply an infinitely stacking Burn, dealing magic damage over time.Your Burn effects reduce your basic Ability Cooldowns.
11.6%Pick Rate
Eureka
Gain Ability Haste equal to 20% Ability Power.
18.7%Pick Rate
Phenomenal Evil
Permanently gain 1 Ability Power when you hit an enemy with an Ability.If taken after round 4, gain 40 Ability Power.
16.8%Pick Rate
Magic Missile
Dealing damage with an Ability fires 3 magic missiles, each dealing percent max Health true damage.
9.8%Pick Rate
Transmute: Prismatic
Gain a random Prismatic Augment.
15.9%Pick Rate
Witchful Thinking
Gain 60 Ability Power.
15.2%Pick Rate
ADAPt
Convert Bonus Attack Damage to Ability Power. Gain 15% Ability Power.
5.1%Pick Rate
Executioner
Deal 10% more damage to enemies below 40% health. Reset your basic abilities on takedown.
FF Tier(1)
5.3%Pick Rate
Giant Slayer
Become tiny, gain Move Speed, and bonus damage to champions based on how much larger they are than you.
Find the best 3v3 teammate champions to pair with Karthus in League of Legends Arena mode. The strongest duo partner is Swain, achieving a 33.3% win rate and 2.6 average placement when paired together. Other high-synergy partners include Caitlyn and Leona, both offering improved placement rates compared to Karthus's solo average of 3.3. 8 champions boost Karthus's win rate above their baseline 18.1%. Compare win rates, top 2 rates, top 4 rates, and placement differences to find your ideal Arena duo composition.
Partner | Tier | Win Rate | WR Diff | Top 2 | Top 4 | Avg Place | Place Diff | Matches |
|---|---|---|---|---|---|---|---|---|
 Swain | S | 33.3% | +15.3% | 66.7% | 81.0% | 2.6 | +0.8 | 42 |
 Caitlyn | S | 45.8% | +27.8% | 50.0% | 79.2% | 2.8 | +0.5 | 48 |
 Leona | C | 16.7% | -1.4% | 41.7% | 87.5% | 2.9 | +0.4 | 48 |
 Ezreal | C | 16.7% | -1.4% | 37.5% | 95.8% | 2.9 | +0.4 | 48 |
 Ryze | A | 27.3% | +9.2% | 40.9% | 72.7% | 3.1 | +0.2 | 44 |
 Sion | B | 23.1% | +5.0% | 38.5% | 73.1% | 3.1 | +0.2 | 52 |
 Graves | C | 19.2% | +1.2% | 42.3% | 73.1% | 3.2 | +0.1 | 52 |
 Singed | B | 24.0% | +5.9% | 44.0% | 64.0% | 3.2 | +0.1 | 50 |
 Warwick | C | 20.8% | +2.8% | 45.8% | 66.7% | 3.3 | +0.1 | 48 |
 Galio | A | 25.9% | +7.9% | 48.1% | 63.0% | 3.3 | +0.0 | 54 |
Optimize your Karthus Arena itemization with the highest win rate builds for Patch 16.17. The top-performing build features Pyromancer's Cloak, Wooglet's Witchcap, Liandry's Anguish as core items, achieving a 40.0% win rate and 2.6 average placement. Sorcerer's Shoes is the recommended boots choice for this build. The top 3 builds average 17.0% win rate, significantly impacting your Arena success. Each build shows core items, situational options, win rate compared to Karthus's baseline, and top 4 placement rates to help you climb in Arena ranked.
Rank | Core Items | Situational | Boots | Tier | Win Rate | WR Diff | Top 2 | Top 4 | Avg Place | Matches |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |    |   |  | C | 40.0% | +21.9% | 60.0% | 80.0% | 2.6 | 5 |
| 2 | |  | | D | 11.1% | -6.9% | 22.2% | 55.6% | 3.9 | 9 |
| 3 |   | | | F | 0.0% | -18.1% | 0.0% | 60.0% | 4.0 | 5 |
Is Karthus Good in Arena Mode?
Karthus is currently rated as an B-tier champion in League of Legends Arena mode for Patch 16.17, making them a reliable option in the 3v3v3v3v3v3 format. With a 18.1% win rate (1st place finishes) and a 71.9% top 4 rate, Karthus performs above the expected average in the current Arena meta.
Karthus Arena Performance Analysis
In Arena's unique 3v3v3v3v3v3 format, Karthus averages a 3.3 placement across 1,147 analyzed matches. This aggressive damage dealer playstyle allows Karthus to deal significant damage, ranking in the top 1% of all Arena champions for damage output.
The 36.3% top 2 rate indicates consistent high placements and strong late-game scaling. Players looking to climb Arena ranked should capitalize on Karthus's strengths to maximize placement consistency.
Best Champions to Pair with Karthus
Duo composition is critical in Arena, and Karthus synergizes exceptionally well with Swain, achieving a combined 33.3% win rate and 2.6 average placement. This pairing improves Karthus's baseline performance by +15.3%.
Other strong duo partners include Caitlyn (45.8% win rate) and Leona (16.7% win rate). Karthus has excellent duo flexibility with 8+ partners that boost win rate above baseline.
Karthus Augment Priority Guide
Augment selection can make or break your Arena run. For Karthus, the highest-performing augment is It's Killing Time, which players select in 28.0% of games.
When offered Prismatic augments, prioritize Jeweled Gauntlet for maximum impact. Gold augments like It's Killing Time provide consistent value throughout the game. Use the augment tier list above to identify which augments to prioritize during each selection round.
Optimal Karthus Arena Build Path
The highest win rate build for Karthus in Arena features Pyromancer's Cloak, Wooglet's Witchcap, Liandry's Anguish as core items, achieving a 40.0% win rate. Sorcerer's Shoes is the recommended boots choice, providing mobility and stats for Arena fights.
Arena's accelerated gold income means reaching full build faster than Summoner's Rift. Focus on completing core items before branching into situational options. The builds listed above are sorted by average placement, helping you identify which item combinations lead to the highest finishes in the current patch.
Tips for Playing Karthus in Arena
🎯
Duo Synergy
Coordinate with your partner to cover Karthus's weaknesses. Consider a tanky partner to create space for your damage.
⚡
Augment Adaptation
Prioritize S-tier and A-tier augments when offered. Karthus's 71.9% top 4 rate can be improved significantly with optimal augment selection each round.
🛡️
Combat Strategy
Leverage Karthus's high damage output to eliminate threats quickly. Focus priority targets while your partner provides support.
Final Verdict: Should You Play Karthus in Arena?
Karthus is a solid choice in Arena that can perform well with the right partner and augment combinations. While not top-tier, dedicated Karthus players can achieve consistent placements by following optimal builds and duo strategies. The 71.9% top 4 rate shows potential for solid finishes.
This data is updated regularly for Patch 16.17. Check back after each patch to see how balance changes affect Karthus's Arena performance. For the most accurate results, we analyze 1,147 matches to provide reliable statistics and recommendations.
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Karthus Arena FAQ - Patch 16.17
Is Karthus good in Arena mode?
Karthus is currently a B-tier champion in Arena mode with a 18.1% win rate and 71.9% top 4 rate. Karthus is a viable pick that can perform well with the right partner and augments.
What is the best duo partner for Karthus in Arena?
The best duo partner for Karthus in Arena is Swain, achieving a 33.3% win rate and 2.6 average placement together. Other strong partners include Caitlyn and Leona.
What are the best augments for Karthus in Arena?
The highest-performing augment for Karthus is It's Killing Time with a 28.0% pick rate. Prioritize Prismatic and Gold augments that synergize with Karthus's kit.
What is the best build for Karthus in Arena?
The highest win rate build for Karthus in Arena includes Pyromancer's Cloak, Wooglet's Witchcap, Liandry's Anguish as core items, achieving a 40.0% win rate. Sorcerer's Shoes is the recommended boots choice. Arena's accelerated gold income allows you to complete builds faster than Summoner's Rift.
What is Karthus's win rate in Arena?
Karthus has a 18.1% win rate (1st place) in Arena mode for Patch 16.17. The top 2 rate is 36.3% and top 4 rate is 71.9%, with an average placement of 3.3 across 1,147 analyzed matches.
What tier is Karthus in Arena?
Karthus is rated as B-tier in Arena mode for Patch 16.17. B-tier champions are solid choices that can succeed with good execution. Tiers are calculated based on win rate, top 4 rate, and average placement.
How do I play Karthus in Arena?
To play Karthus effectively in Arena: 1) Partner with Swain for best results. 2) Prioritize It's Killing Time when offered. 3) Build Pyromancer's Cloak early for power spikes. 4) Focus on dealing damage to priority targets while your partner provides support.
What are Karthus's best and worst matchups in Arena?
Karthus's performance varies significantly based on duo partner selection. Pairing with Swain improves win rate to 33.3%. The key to success is choosing partners that complement Karthus's high damage output and selecting augments that enhance your duo composition.
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