Tier: Off MetaWin33.87%Role1.08%Pick0.03%Ban9.15%Games: 51KDA: 1.68Score: 41.67
Karthus Support is ranked Off Meta Tier and has a 33.87% win rate in LoL Patch 25.09. We've analyzed 51 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Blackfire Torch, Sorcerer's Shoes, Liandry's Torment, Morellonomicon, Shadowflame, and Zaz'Zak's Realmspike. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Exhaust and Flash. Starting items should include Boots, Health Potion, and Stealth Ward. Karthus's Best Support counters are Bard, Blitzcrank, and Yuumi.
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Karthus Summoner Spells


Win %
Pick %
38%
88%
37%
90%

29%
14%

0%
2%

0%
6%
Karthus Starting Items
Win %
Buy %


2

100%
2%
Karthus Runes
Win %
Pick %
58%
25%
30%
20%
38%
21%
100%
2%
Karthus Items

40%

39%

41%

78%

33%

36%

36%

43%
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 %

36%
98%

41%
67%

0%
6%
Karthus Boots
Win %
Buy %

39%
80%

22%
18%
Karthus Support Items
Win %
Buy %

36%
88%

0%
2%

0%
2%