Karthus is ranked Tier and has a 7.94% win rate in LoL Arena Patch 25.13. We've analyzed 27 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Mercury's Treads, Rylai's Crystal Scepter, Blackfire Torch, Rite Of Ruin, Rabadon's Deathcap, and Void Staff. Karthus's best augments include Gamba Anvil (Prismatic), Marksmage (Gold), and Executioner (Silver). Karthus's Best Arena matchups include Amumu, Hecarim, and Azir. Karthus's Best Arena counters are Ornn, Rell, and Urgot.
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Best Prismatic Augments for Karthus
Gamba Anvil
Tier: S+

Infernal Conduit
Tier: S

Jeweled Gauntlet
Tier: S

Orbital Laser
Tier: A

Best Gold Augments for Karthus
Marksmage
Tier: S+

Big Brain
Tier: S

Flashy
Tier: S

It's Killing Time
Tier: S

Best Silver Augments for Karthus
Executioner
Tier: S+

Juice Box
Tier: S

Witchful Thinking
Tier: S

Overflow
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

70%
2

4%
4

11%
8

26%
11

11%
14

70%
17

22%
Karthus Boots
Buy %

4%

4%

81%
Karthus Situational Items
Buy %

11%

7%

59%

7%

15%

4%
Karthus Juices
Buy %

4%

2%

0%
Karthus Silver Augment Tier List















Karthus Gold Augment Tier List



















Karthus Prismatic Augment Tier List












