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Mage

Karthus Arena Build 
25.09 LoL 

 Augments, Items, Duos
Tier: SWin19.12%Pick7.61%Ban2.02%Games: 68KDA: 2.18Score: 56.16

Karthus is ranked S Tier and has a 19.12% win rate in LoL Arena Patch 25.09. We've analyzed 68 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Liandry's Anguish, Rabadon's Deathcap, Shadowflame, Void Staff, and Detonation Orb. Karthus's best augments include Infernal Conduit (Prismatic), Big Brain (Gold), and Dive Bomber (Silver). For team partners, the best champions include: Caitlyn. Karthus's Best Arena matchups include Irelia, Janna, and Naafiri. Karthus's Best Arena counters are Lillia, Aatrox, and Aurelion Sol.

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Best Prismatic Augments for Karthus

Infernal ConduitInfernal ConduitTier: S+
Can't Touch ThisCan't Touch ThisTier: S
Jeweled GauntletJeweled GauntletTier: S
Slow CookerSlow CookerTier: S

Best Gold Augments for Karthus

Big BrainBig BrainTier: S+
Bread And JamBread And JamTier: S
Searing DawnSearing DawnTier: S
Defensive ManeuversDefensive ManeuversTier: S

Best Silver Augments for Karthus

Dive BomberDive BomberTier: S+
Witchful ThinkingWitchful ThinkingTier: S+
OverflowOverflowTier: S
Mind to MatterMind to MatterTier: S

Karthus Skill Order

Death Defied
123456789101112131415161718
Lay Waste
QQQQQ
Wall of Pain
WWWWW
Defile
EEEEE
Requiem
RRR

Karthus Items by Round

Buy %
1
Guardian's Orb
69%
2
Sorcerer's Shoes
85%
3
Detonation Orb
38%
4
Liandry's Anguish
57%
8
Rabadon's Deathcap
75%
11
Shadowflame
29%
14
Void Staff
26%

Karthus Boots

Buy %
Sorcerer's Shoes
85%
Ionian Boots of Lucidity
1%
Ghostcrawlers
1%

Karthus Situational Items

Buy %
Blackfire Torch
26%
Morellonomicon
19%
Rod of Ages
15%
Rite Of Ruin
12%
Stormsurge
9%
Zhonya's Hourglass
10%

Karthus Juices

Buy %
Juice of Power
8%
Juice of Vitality
2%
Juice of Haste
1%

Karthus Prismatic Item Tier List

Detonation OrbA
RunecarverB
Pyromancer's CloakD

Karthus Silver Augment Tier List

Dive BomberS+
Witchful ThinkingS+
OverflowS
Mind to MatterS
Warmup RoutineS
Tank EngineS
DematerializeS
ADAPtA
ExecutionerA
Self DestructA
Fruits of Your LaborA
Contract KillerA
Transmute: GoldA
Ice ColdA
Frost WraithB
Don't ChaseB
Parasitic MutationB
Ocean SoulB
Hold Very StillB
RepulsorB
Infernal SoulB
Fallen AegisC
Ultimate UnstoppableC
Stats!C
Juice BoxC
Serve Beyond DeathC
Scoped WeaponsD
HomeguardD
Leg DayD
Buff BuddiesD

Karthus Gold Augment Tier List

Big BrainS+
Bread And JamS
Searing DawnS
Defensive ManeuversS
Divine InterventionS
Magic MissileS
From Beginning to EndA
Keystone ConjurerA
Phenomenal EvilA
Transmute: PrismaticA
It's Killing TimeA
Combo MasterA
Die Another DayB
Thread the NeedleB
We'll Be Right BackB
Quest: Urf's ChampionB
VulnerabilityB
Stats on Stats!B
FlashyB
MarksmageC
Apex InventorC
RecursionC
Parasitic RelationshipC
DeathtouchD
PerseveranceD
Ethereal WeaponD

Karthus Prismatic Augment Tier List

Infernal ConduitS+
Can't Touch ThisS
Jeweled GauntletS
Slow CookerS
Fey MagicA
Back To BasicsA
Quantum ComputingA
Stats on Stats on Stats!A
Ultimate RevolutionA
SpellwakeB
Gamba AnvilB
Giant SlayerB
Quest: Wooglet's WitchcapB
Accelerating SorceryC
Omni SoulC
DoomsayerC
Blade WaltzD
Chain LightningD
Sacrifice: For PrismaticD
DreadbringerD

Best Bans for Karthus in Arena

Sett, the Boss
S+
Twisted Fate, the Card Master
S
Renekton, the Butcher of the Sands
S
Lillia, the Bashful Bloom
S
Lulu, the Fae Sorceress
A
Kalista, the Spear of Vengeance
A
Lee Sin, the Blind Monk
A
Morgana, the Fallen
A
Veigar, the Tiny Master of Evil
A
Rengar, the Pridestalker
A
Jarvan IV, the Exemplar of Demacia
A
Aatrox, the Darkin Blade
A
Xayah, the Rebel
A
Nidalee, the Bestial Huntress
A
Zeri, The Spark of Zaun
A
Janna, the Storm's Fury
A
Nocturne, the Eternal Nightmare
A
Sylas, the Unshackled
A
Viktor, the Herald of the Arcane
A
Gnar, the Missing Link
A
Dr. Mundo, the Madman of Zaun
A

Best Karthus Duo Champions in Arena(over 51% top 2 rate with Karthus)

Caitlyn, the Sheriff of Piltover
+49.0

Average Karthus Duo Champions in Arena(49% - 51% top 2 rate with Karthus)

Diana, Scorn of the Moon
Nami, the Tidecaller
Pantheon, the Unbreakable Spear
Pyke, the Bloodharbor Ripper
Rammus, the Armordillo
Sett, the Boss

Best Champions to Counter Karthus in Arena(under 49% top 2 rate for Karthus)

Lillia, the Bashful Bloom
-19.0
Aatrox, the Darkin Blade
-15.7
Aurelion Sol, The Star Forger
-15.7
Bel'Veth, the Empress of the Void
-15.7
Jarvan IV, the Exemplar of Demacia
-15.7
Lee Sin, the Blind Monk
-15.7
Morgana, the Fallen
-15.7
Nidalee, the Bestial Huntress
-15.7
Nocturne, the Eternal Nightmare
-15.7
Ryze, the Rune Mage
-15.7
Tryndamere, the Barbarian King
-15.7
Twisted Fate, the Card Master
-15.7
Veigar, the Tiny Master of Evil
-15.7
Zeri, The Spark of Zaun
-15.7
Annie, the Dark Child
-6.1
Kalista, the Spear of Vengeance
-6.1
Lulu, the Fae Sorceress
-6.1
Renekton, the Butcher of the Sands
-6.1
Sett, the Boss
-6.1

Best Matchups for Karthus in Arena(over 51% top 2 rate for Karthus)

Irelia, the Blade Dancer
+49.0
Janna, the Storm's Fury
+49.0
Naafiri, the Hound of a Hundred Bites
+49.0
Olaf, the Berserker
+49.0
Rammus, the Armordillo
+49.0
Zoe, the Aspect of Twilight
+49.0
Soraka, the Starchild
+34.7
Akali, the Rogue Assassin
+15.7
Gnar, the Missing Link
+15.7
Jinx, the Loose Cannon
+15.7
Rengar, the Pridestalker
+15.7
Xayah, the Rebel
+15.7
Sylas, the Unshackled
+11.5
Dr. Mundo, the Madman of Zaun
+10.5
Gwen, The Hallowed Seamstress
+9.0
Jax, Grandmaster at Arms
+9.0
LeBlanc, the Deceiver
+9.0
Nami, the Tidecaller
+9.0
Garen, The Might of Demacia
+6.1

Even Matchups for Karthus in Arena(49% - 51% top 2 rate for Karthus)

Kai'Sa, Daughter of the Void
Miss Fortune, the Bounty Hunter
Mordekaiser, the Iron Revenant
Qiyana, Empress of the Elements
Swain, the Noxian Grand General
Thresh, the Chain Warden
Trundle, the Troll King
Viktor, the Herald of the Arcane
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