Karthus is ranked Tier and has a 11.76% 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, Malignance, Rabadon's Deathcap, Void Staff, Rite Of Ruin, and Detonation Orb. Karthus's best augments include Fey Magic (Prismatic), Magic Missile (Gold), and Ice Cold (Silver). Karthus's Best Arena matchups include Fizz, Hecarim, and Seraphine. Karthus's Best Arena counters are Garen, Gragas, and Miss Fortune.
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Best Prismatic Augments for Karthus
Fey Magic
Tier: S+

Infernal Conduit
Tier: A

Quest: Wooglet's Witchcap
Tier: A

Stats on Stats on Stats!
Tier: A

Best Gold Augments for Karthus
Magic Missile
Tier: S+

Big Brain
Tier: S

Transmute: Prismatic
Tier: S

It's Killing Time
Tier: A

Best Silver Augments for Karthus
Ice Cold
Tier: A

Light 'em Up!
Tier: A

Overflow
Tier: A

ADAPt
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

71%
2

76%
3

29%
4

18%
8

71%
11

35%
14

18%
Karthus Boots
Buy %

76%
Karthus Situational Items
Buy %

18%

18%

12%

12%

6%

18%
Karthus Juices
Buy %

5%

2%
Karthus Silver Augment Tier List










Karthus Gold Augment Tier List
















Karthus Prismatic Augment Tier List










