Karthus is ranked Tier and has a 15.51% win rate in LoL Arena Patch 25.13. We've analyzed 37 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Zhonya's Hourglass, Malignance, Shadowflame, Rabadon's Deathcap, and Void Staff. Karthus's best augments include Wisdom of Ages (Prismatic), Thread the Needle (Gold), and Juice Box (Silver). For team partners, the best champions include: Vladimir. Karthus's Best Arena matchups include Qiyana, Annie, and K'Sante. Karthus's Best Arena counters are Fizz, Gangplank, and Graves.
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Best Prismatic Augments for Karthus
Wisdom of Ages
Tier: S+

Gamba Anvil
Tier: S

Jeweled Gauntlet
Tier: S

Infernal Conduit
Tier: S

Best Gold Augments for Karthus
Thread the Needle
Tier: S+

Soul Siphon
Tier: S+

Shrink Ray
Tier: S

Phenomenal Evil
Tier: S

Best Silver Augments for Karthus
Juice Box
Tier: S+

Executioner
Tier: S+

Mountain Soul
Tier: S

Flashbang
Tier: S

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

78%
2

84%
4

22%
8

38%
11

43%
14

78%
17

24%
Karthus Boots
Buy %

84%

5%

3%
Karthus Situational Items
Buy %

65%

14%

11%

3%

5%

5%
Karthus Juices
Buy %

5%

1%
Karthus Silver Augment Tier List
























Karthus Gold Augment Tier List




























Karthus Prismatic Augment Tier List

















