Tier: S+Win43.45%Role16.26%Pick0.23%Ban0.00%Games: 106KDA: 2.17Score: 47.62
Karthus Support is ranked S+ Tier and has a 43.45% win rate in LoL Swiftplay Patch 25.13. We've analyzed 106 Karthus Support games to compile our statistical Karthus Swiftplay Build Guide. For items, our build recommends: Sorcerer's Shoes, Malignance, Blackfire Torch, Liandry's Torment, Zaz'Zak's Realmspike, and Shadowflame. For runes, the strongest choice is Inspiration (Primary) with First Strike (Keystone), and Sorcery (Secondary). The optimal Summoner Spells for this build are Flash and Heal. Starting items should include Boots and Health Potion. Karthus's Best Swiftplay Support matchups include Morgana, Zyra, and Seraphine. Karthus's Best Swiftplay Support counters are Brand, Nami, and Teemo.
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Karthus Summoner Spells


Win %
Pick %
56%
92%
61%
29%

50%
36%

44%
17%

88%
8%

41%
16%
Karthus Starting Items
Win %
Buy %


2
0%
1%
Karthus Runes
Win %
Pick %
68%
29%
48%
38%
57%
23%
27%
3%
Karthus Items

54%

54%

63%

56%

56%

61%

52%

38%
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 %

52%
83%

62%
61%

80%
5%
Karthus Boots
Win %
Buy %

54%
68%

57%
20%

20%
5%

100%
1%

100%
1%
Karthus Support Items
Win %
Buy %

56%
64%

100%
2%

0%
3%