Tier: CWin47.20%Role20.23%Pick0.20%Ban0.00%Games: 163KDA: 1.94Score: 49.39
Karthus Support is ranked C Tier and has a 47.20% win rate in LoL Swiftplay Patch 25.04. We've analyzed 163 Karthus Support games to compile our statistical Karthus Swiftplay Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Zaz'Zak's Realmspike, Liandry's Torment, Shadowflame, and Rabadon's Deathcap. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Sorcery (Secondary). The optimal Summoner Spells for this build are Flash and Ignite. Starting items should include World Atlas, Health Potion, and Stealth Ward. Karthus's Best Swiftplay Support matchups include Karma, Teemo, and Zyra. Karthus's Best Swiftplay Support counters are Morgana, Pyke, and Lux.
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Karthus Summoner Spells
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Win %
Pick %
45%
88%
54%
36%

45%
39%

45%
18%

48%
14%

50%
2%
Karthus Starting Items
Win %
Buy %


2

50%
85%


2

29%
4%
Karthus Runes
Win %
Pick %
40%
40%
54%
26%
55%
7%
54%
7%
Karthus Items

47%

55%

48%

46%

47%

44%

45%

25%
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 %

45%
81%

56%
28%

38%
5%
Karthus Boots
Win %
Buy %

55%
56%

29%
4%

100%
1%

50%
1%

50%
1%

0%
1%
Karthus Support Items
Win %
Buy %

48%
63%

75%
2%

40%
3%