Karthus is ranked Tier and has a 16.56% win rate in LoL Arena Patch 25.14. We've analyzed 55 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Liandry's Anguish, Malignance, Rabadon's Deathcap, Blackfire Torch, and Void Staff. Karthus's best augments include Summoner's Roulette (Prismatic), Combo Master (Gold), and Erosion (Silver). Karthus's Best Arena matchups include Sion, Skarner, and Gwen. Karthus's Best Arena counters are Swain, Aphelios, and Galio.
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Best Prismatic Augments for Karthus
Summoner's Roulette
Tier: S+

Jeweled Gauntlet
Tier: S

Quest: Wooglet's Witchcap
Tier: S

Omni Soul
Tier: S

Best Gold Augments for Karthus
Combo Master
Tier: S+

Symbiotic Mutation
Tier: S+

Thread the Needle
Tier: S

Restless Restoration
Tier: S

Best Silver Augments for Karthus
Erosion
Tier: S+

Hold Very Still
Tier: S+

Homeguard
Tier: S

Clothesline
Tier: S

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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![]() | Q | Q | Q | Q | Q | |||||||||||||
![]() | W | W | W | W | W | |||||||||||||
![]() | E | E | E | E | E | |||||||||||||
![]() | R | R | R |
Karthus Items by Round
Buy %
1

82%
2

87%
4

45%
8

67%
11

87%
14

22%
17

25%
Karthus Boots
Buy %

87%

4%
Karthus Situational Items
Buy %

20%

11%

11%

15%

11%

4%
Karthus Juices
Buy %

6%

1%

1%
Karthus Silver Augment Tier List

























Karthus Gold Augment Tier List

























Karthus Prismatic Augment Tier List


















