Tier: Off MetaWin36.53%Role1.56%Pick0.07%Ban13.37%Games: 40KDA: 1.92Score: 46.74
Karthus Support is ranked Off Meta Tier and has a 36.53% win rate in LoL Patch 14.11. We've analyzed 40 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Blackfire Torch, Sorcerer's Shoes, Mejai's Soulstealer, Liandry's Torment, Malignance, and Zaz'Zak's Realmspike. For runes, the strongest choice is Sorcery (Primary) with Arcane Comet (Keystone), and Domination (Secondary). The optimal Summoner Spells for this build are Exhaust and Flash. Starting items should include World Atlas, Health Potion, and Stealth Ward. Karthus's Best Support matchups include Blitzcrank and Seraphine. Karthus's Best Support counters are Leona.
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Karthus Summoner Spells


Win %
Pick %
48%
63%
34%
88%

42%
30%

50%
5%

50%
5%

50%
5%
Karthus Starting Items
Win %
Buy %


2

34%
88%


100%
3%
Karthus Runes
Win %
Pick %
100%
10%
28%
22%
28%
25%
47%
14%
Karthus Items

34%

30%

100%

43%

36%

36%

38%

40%
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 Item Purchase Order


















Karthus Trinkets
Win %
Buy %

38%
85%

46%
65%

0%
5%
Karthus Boots
Win %
Buy %

30%
58%

25%
20%

50%
5%
Karthus Support Items
Win %
Buy %

36%
70%

50%
5%