Karthus is ranked Tier and has a 4.00% win rate in LoL Arena Patch 25.09. We've analyzed 31 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Blackfire Torch, Rabadon's Deathcap, Malignance, Luden's Companion, and Diamond-Tipped Spear. Karthus's best augments include Omni Soul (Prismatic), Perseverance (Gold), and Infernal Soul (Silver). Karthus's Best Arena matchups include Fiddlesticks, Renekton, and Varus. Karthus's Best Arena counters are Azir, Kled, and Neeko.
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Best Prismatic Augments for Karthus
Omni Soul
Tier: S+

Summoner's Roulette
Tier: S

Giant Slayer
Tier: S

Mad Scientist
Tier: S

Best Gold Augments for Karthus
Perseverance
Tier: S+

Phenomenal Evil
Tier: S+

Searing Dawn
Tier: S

With Haste
Tier: S

Best Silver Augments for Karthus
Infernal Soul
Tier: S

Juice Box
Tier: S

Desecrator
Tier: S

Witchful Thinking
Tier: A

Karthus 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

65%
2

77%
3

10%
4

35%
8

81%
11

52%
14

10%
Karthus Boots
Buy %

77%

6%

3%

3%
Karthus Situational Items
Buy %

26%

26%

19%

10%

13%

39%
Karthus Juices
Buy %

8%

1%

0%
Karthus Silver Augment Tier List
















Karthus Gold Augment Tier List

























Karthus Prismatic Augment Tier List
















