Karthus is ranked Tier and has a 2.50% win rate in LoL Arena Patch 25.15. We've analyzed 20 Karthus games to compile our statistical Karthus Arena Build Guide. For items, our build recommends: Sorcerer's Shoes, Liandry's Anguish, Malignance, Rabadon's Deathcap, Blackfire Torch, and Sunfire Aegis. Karthus's best augments include Infernal Conduit (Prismatic), Thread the Needle (Gold), and Ultimate Unstoppable (Silver). Karthus's Best Arena matchups include Gragas. Karthus's Best Arena counters are Galio, Viego, and Yone.
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Best Prismatic Augments for Karthus
Infernal Conduit
Tier: S+

Quest: Wooglet's Witchcap
Tier: S

Mad Scientist
Tier: S

Ultimate Revolution
Tier: A

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

Combo Master
Tier: S

Magic Missile
Tier: A

It's Killing Time
Tier: A

Best Silver Augments for Karthus
Ultimate Unstoppable
Tier: S+

Executioner
Tier: S

Overflow
Tier: S

Ice Cold
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

80%
2

80%
4

60%
8

55%
11

80%
14

35%
17

5%
Karthus Boots
Buy %

80%
Karthus Situational Items
Buy %

10%

20%

5%

25%

10%

10%
Karthus Juices
Buy %

1%

9%
Karthus Silver Augment Tier List















Karthus Gold Augment Tier List












Karthus Prismatic Augment Tier List












