Karthus is ranked Tier and has a 7.50% win rate in LoL Arena Patch 25.18. We've analyzed 25 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Malignance, Rabadon's Deathcap, Liandry's Anguish, Void Staff, and Seraph's Embrace. Karthus's best augments include Fey Magic (Prismatic), Overflow (Gold), and Stats! (Silver). Karthus's Best Arena matchups include Sett, Lucian, and Sejuani. Karthus's Best Arena counters are Annie, Blitzcrank, and Braum.
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Best Prismatic Augments for Karthus
Fey Magic
Tier: S+

Jeweled Gauntlet
Tier: S

Infernal Conduit
Tier: A

Omni Soul
Tier: A

Best Gold Augments for Karthus
Overflow
Tier: S+

From Beginning to End
Tier: S

Magic Missile
Tier: S

It's Killing Time
Tier: S

Best Silver Augments for Karthus
Stats!
Tier: S

Juice Press
Tier: S

ADAPt
Tier: S

Executioner
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

64%
4

56%
8

64%
11

44%
14

28%
17

20%
Karthus Boots
Buy %

64%

4%
Karthus Situational Items
Buy %

4%

16%

12%

8%

16%

4%
Karthus Juices
Buy %

5%
Karthus Silver Augment Tier List
















Karthus Gold Augment Tier List



















Karthus Prismatic Augment Tier List










