Tier: Off MetaWin49.18%Role6.99%Pick0.12%Ban0.31%Games: 61KDA: 1.84Score: 50.23
Karthus Support is ranked Off Meta Tier and has a 49.18% win rate in LoL Patch 10.25. We've analyzed 61 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Liandry's Anguish, Sorcerer's Shoes, Demonic Embrace, Rabadon's Deathcap, Shard of True Ice, and Void Staff. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Flash and Ignite. Starting items should include Spellthief's Edge, Health Potion, and Stealth Ward. Karthus's Best Support matchups include Pyke, Swain, and Leona. Karthus's Best Support counters are Morgana.
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Karthus Summoner Spells


Win %
Pick %
49%
100%
43%
57%

61%
30%

33%
10%

100%
3%
Karthus Starting Items
Win %
Buy %


2

51%
90%


2

50%
3%
Karthus Runes
Win %
Pick %
44%
46%
58%
20%
48%
8%
100%
2%
Karthus Items

58%

48%

53%

47%

55%

50%

48%

14%
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 %

48%
92%

50%
43%

100%
2%
Karthus Boots
Win %
Buy %

48%
89%

100%
5%
Karthus Mythic Items
Win %
Buy %

58%
39%

50%
39%

33%
15%

100%
2%