Karthus is ranked Tier and has a 9.09% win rate in LoL Arena Patch 25.13. We've analyzed 11 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Liandry's Anguish, Blackfire Torch, Bloodletter's Curse, Riftmaker, and Pyromancer's Cloak. Karthus's best augments include Ultimate Roulette (Prismatic), Transmute: Prismatic (Gold), and Erosion (Silver). Karthus's Best Arena matchups include Ezreal and Lee Sin.
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Best Prismatic Augments for Karthus
Ultimate Roulette
Tier: A

Transmute: Chaos
Tier: A

Jeweled Gauntlet
Tier: A

Gamba Anvil
Tier: B

Best Gold Augments for Karthus
Transmute: Prismatic
Tier: S

It's Killing Time
Tier: S

Big Brain
Tier: A

Phenomenal Evil
Tier: A

Best Silver Augments for Karthus
Erosion
Tier: S

Tank Engine
Tier: S

Fruits of Your Labor
Tier: A

Ocean Soul
Tier: A

Karthus Skill Order
![]() | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
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![]() | E | E | E | E | E | |||||||||||||
![]() | R | R | R |
Karthus Items by Round
Buy %
1

82%
2

91%
3

27%
4

64%
8

27%
11

9%
14

9%
Karthus Boots
Buy %

91%

9%
Karthus Situational Items
Buy %

18%

9%

18%

45%

36%

82%
Karthus Juices
Buy %

5%
Karthus Silver Augment Tier List











Karthus Gold Augment Tier List










Karthus Prismatic Augment Tier List






