Tier: Off MetaWin31.17%Role3.26%Pick0.06%Ban1.79%Games: 69KDA: 1.63Score: 37.61
Karthus Support is ranked Off Meta Tier and has a 31.17% win rate in LoL Patch 25.18. We've analyzed 69 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Blackfire Torch, Sorcerer's Shoes, Malignance, Liandry's Torment, Zaz'Zak's Realmspike, and Shadowflame. 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 Exhaust. Starting items should include Doran's Ring and Health Potion. Karthus's Best Support matchups include Milio, Senna, and Lux. Karthus's Best Support counters are Morgana and Vel'Koz.
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Karthus Summoner Spells


Win %
Pick %
39%
90%
33%
61%

36%
32%

83%
9%

80%
7%

100%
1%
Karthus Starting Items
Win %
Buy %


2
0%
1%
Karthus Runes
Win %
Pick %
44%
41%
43%
29%
29%
5%
32%
5%
Karthus Items

33%

37%

54%

47%

43%

28%

43%

78%
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





2800
1100


2700


3000
400


3200
500Karthus Trinkets
Win %
Buy %

43%
74%

39%
78%

29%
10%
Karthus Boots
Win %
Buy %

37%
59%

67%
9%

0%
1%
Karthus Support Items
Win %
Buy %

43%
87%

0%
1%

0%
1%



























