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Mage

Karthus Arena Build 
25.09 LoL 

 Augments, Items, Duos
Tier: S+Win33.33%Pick7.90%Ban2.31%Games: 30KDA: 2.26Score: 57.40

Karthus is ranked S+ Tier and has a 33.33% win rate in LoL Arena Patch 25.09. We've analyzed 30 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Rabadon's Deathcap, Malignance, Void Staff, Rite Of Ruin, and Talisman Of Ascension. Karthus's best augments include Jeweled Gauntlet (Prismatic), Soul Siphon (Gold), and Witchful Thinking (Silver). Karthus's Best Arena matchups include Gnar, Hwei, and Jayce. Karthus's Best Arena counters are Gangplank, Katarina, and Kayn.

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Best Prismatic Augments for Karthus

Jeweled GauntletJeweled GauntletTier: S+
EurekaEurekaTier: A
Ultimate RevolutionUltimate RevolutionTier: A
Chain LightningChain LightningTier: A

Best Gold Augments for Karthus

Soul SiphonSoul SiphonTier: S+
Quest: Urf's ChampionQuest: Urf's ChampionTier: A
RestartRestartTier: A
VengeanceVengeanceTier: A

Best Silver Augments for Karthus

Witchful ThinkingWitchful ThinkingTier: S+
Contract KillerContract KillerTier: S
Parasitic MutationParasitic MutationTier: S
OverflowOverflowTier: A

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
60%
2
Sorcerer's Shoes
73%
3
Talisman Of Ascension
13%
4
Rabadon's Deathcap
90%
8
Malignance
43%
11
Void Staff
33%
14
Rite Of Ruin
23%

Karthus Boots

Buy %
Sorcerer's Shoes
73%
Ionian Boots of Lucidity
3%

Karthus Situational Items

Buy %
Morellonomicon
17%
Perplexity
20%
Shadowflame
27%
Liandry's Anguish
40%
Zhonya's Hourglass
7%
Cryptbloom
3%

Karthus Juices

Buy %
Juice of Power
4%
Juice of Haste
0%
Juice of Vitality
0%

Karthus Silver Augment Tier List

Witchful ThinkingS+
Contract KillerS
Parasitic MutationS
OverflowA
ExecutionerA
Tank EngineA
Ocean SoulB
Mind to MatterB
DematerializeB
Stats!B
Transmute: GoldD
ErosionD
FirefoxD
ADAPtD

Karthus Gold Augment Tier List

Soul SiphonS+
Quest: Urf's ChampionA
RestartA
VengeanceA
Dark BlessingA
Hat TrickA
Big BrainA
It's Killing TimeA
Magic MissileA
From Beginning to EndB
Phenomenal EvilB
Combo MasterB
Stats on Stats!B
Transmute: PrismaticB
Keystone ConjurerC
Thread the NeedleC
Apex InventorD
Celestial BodyD
Divine InterventionD

Karthus Prismatic Augment Tier List

Jeweled GauntletS+
EurekaA
Ultimate RevolutionA
Chain LightningA
Prismatic EggA
Gamba AnvilA
DoomsayerA
Trueshot ProdigyB
Transmute: ChaosB
Infernal ConduitB
ChauffeurB
SpellwakeC
Mad ScientistC
Giant SlayerD
Quest: Wooglet's WitchcapD

Best Bans for Karthus in Arena

Sylas, the Unshackled
S+
Katarina, the Sinister Blade
S
Nunu, the Boy and His Yeti
S
Kayn, the Shadow Reaper
S
Soraka, the Starchild
S
Riven, the Exile
A
Zac, the Secret Weapon
A
Shaco, the Demon Jester
A
Swain, the Noxian Grand General
A
Sona, Maven of the Strings
A
Smolder, the Fiery Fledgling
A
Nocturne, the Eternal Nightmare
A
Gangplank, the Saltwater Scourge
A
Vel'Koz, the Eye of the Void
A
Kai'Sa, Daughter of the Void
A
Gragas, the Rabble Rouser
A
Tristana, the Yordle Gunner
A
Xerath, the Magus Ascendant
A
Twitch, the Plague Rat
A
Singed, the Mad Chemist
A
Vi, the Piltover Enforcer
A

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

Gangplank, the Saltwater Scourge
-15.7
Katarina, the Sinister Blade
-15.7
Kayn, the Shadow Reaper
-15.7
Nocturne, the Eternal Nightmare
-15.7
Nunu, the Boy and His Yeti
-15.7
Riven, the Exile
-15.7
Shaco, the Demon Jester
-15.7
Soraka, the Starchild
-15.7
Sylas, the Unshackled
-15.7
Zac, the Secret Weapon
-15.7
Vel'Koz, the Eye of the Void
-9.0

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

Gnar, the Missing Link
+49.0
Hwei, the Visionary
+49.0
Jayce, the Defender of Tomorrow
+49.0
Kled, the Cantankerous Cavalier
+49.0
Olaf, the Berserker
+49.0
Xerath, the Magus Ascendant
+29.0
Cho'Gath, the Terror of the Void
+15.7
Galio, the Colossus
+15.7
Kha'Zix, the Voidreaver
+15.7
LeBlanc, the Deceiver
+15.7
Nilah, the Joy Unbound
+15.7
Orianna, the Lady of Clockwork
+15.7
Rell, the Iron Maiden
+15.7
Swain, the Noxian Grand General
+15.7
Talon, the Blade's Shadow
+15.7
Volibear, the Relentless Storm
+15.7
Dr. Mundo, the Madman of Zaun
+9.0
Sona, Maven of the Strings
+9.0
Smolder, the Fiery Fledgling
+6.1

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

Aurelion Sol, The Star Forger
Briar, the Restrained Hunger
Gragas, the Rabble Rouser
Hecarim, the Shadow of War
Kai'Sa, Daughter of the Void
Karma, the Enlightened One
Kassadin, the Void Walker
Lissandra, the Ice Witch
Malzahar, the Prophet of the Void
Naafiri, the Hound of a Hundred Bites
Samira, the Desert Rose
Singed, the Mad Chemist
Tristana, the Yordle Gunner
Trundle, the Troll King
Twitch, the Plague Rat
Vi, the Piltover Enforcer
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