Karthus is ranked Tier and has a 16.67% win rate in LoL Arena Patch 25.09. We've analyzed 17 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Liandry's Anguish, Malignance, Blackfire Torch, Rite Of Ruin, and Pyromancer's Cloak. Karthus's best augments include Sacrifice: For Prismatic (Prismatic), Vulnerability (Gold), and Ocean Soul (Silver). Karthus's Best Arena matchups include Gnar, Karma, and Riven. Karthus's Best Arena counters are Master Yi.
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Best Prismatic Augments for Karthus
Sacrifice: For Prismatic
Tier: S

Spellwake
Tier: S

Jeweled Gauntlet
Tier: B

Transmute: Chaos
Tier: B

Best Gold Augments for Karthus
Vulnerability
Tier: S+

Phenomenal Evil
Tier: S

Transmute: Prismatic
Tier: S

Keystone Conjurer
Tier: S

Best Silver Augments for Karthus
Ocean Soul
Tier: S+

Infernal Soul
Tier: S

Juice Box
Tier: A

Dive Bomber
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

76%
2

71%
3

18%
4

71%
8

59%
11

29%
14

6%
Karthus Boots
Buy %

71%

6%
Karthus Situational Items
Buy %

6%

18%

6%

29%

24%

76%
Karthus Juices
Buy %

9%

1%

1%
Karthus Silver Augment Tier List















Karthus Gold Augment Tier List



















Karthus Prismatic Augment Tier List









