Karthus is ranked Tier and has a 13.33% win rate in LoL Arena Patch 25.09. We've analyzed 15 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Rabadon's Deathcap, Void Staff, Rite Of Ruin, Morellonomicon, Stormsurge, and Detonation Orb. Karthus's best augments include Jeweled Gauntlet (Prismatic), Phenomenal Evil (Gold), and Fallen Aegis (Silver). For team partners, the best champions include: Ornn. Karthus's Best Arena matchups include Riven, Mordekaiser, and Naafiri. Karthus's Best Arena counters are Shaco.
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Best Prismatic Augments for Karthus
Jeweled Gauntlet
Tier: A
Tier: ADoomsayerTier: A
Tier: AQuest: Wooglet's WitchcapTier: A
Tier: AFey MagicTier: B
Tier: BBest Gold Augments for Karthus
Phenomenal EvilTier: S+
Tier: S+It's CriticalTier: S
Tier: SIt's Killing TimeTier: A
Tier: ASymbiotic MutationTier: A
Tier: ABest Silver Augments for Karthus
Fallen AegisTier: S
Tier: SClotheslineTier: S
Tier: SWitchful ThinkingTier: A
Tier: ATank It Or Leave ItTier: A
Tier: AKarthus Skill Order
 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Q | Q | Q | Q | Q | |||||||||||||
 | W | W | W | W | W | |||||||||||||
 | E | E | E | E | E | |||||||||||||
 | R | R | R |
Karthus Items by Round
Buy %
1
60%
3
27%
4
53%
5
20%
8
20%
14
7%
17
7%
Karthus Boots
Buy %
67%
Karthus Situational Items
Buy %
20%
7%
27%
13%
27%
47%
Karthus Juices
Buy %
1%
5%
1%
Karthus Silver Augment Tier List
SSAA
A
B
B
B
C
C
D
DKarthus Gold Augment Tier List
S+SAA
A
A
B
B
B
C
C
C
D
DKarthus Prismatic Augment Tier List
AAAB
B
C
D
Best Karthus Duo Champions in Arena(over 51% top 2 rate with Karthus)
Best Champions to Counter Karthus in Arena(under 49% top 2 rate for Karthus)
Even Matchups for Karthus in Arena(49% - 51% top 2 rate for Karthus)
