Tier: Off MetaWin35.53%Role1.82%Pick0.05%Ban4.63%Games: 340KDA: 1.69Score: 37.02
Karthus Support is ranked Off Meta Tier and has a 35.53% win rate in LoL Patch 14.23. We've analyzed 340 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Blackfire Torch, Liandry's Torment, 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 Flash and Exhaust. Starting items should include World Atlas, Health Potion, and Stealth Ward. Karthus's Best Support matchups include Blitzcrank, Lulu, and Rakan. Karthus's Best Support counters are Janna, Leona, and Swain.
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Karthus Summoner Spells


Win %
Pick %
48%
85%
48%
59%

55%
27%

36%
13%

32%
6%

40%
3%
Karthus Starting Items
Win %
Buy %


2

48%
89%


2

30%
3%
Karthus Runes
Win %
Pick %
49%
37%
45%
24%
60%
4%
72%
3%
Karthus Items

45%

52%

48%

54%

54%

49%

50%

52%
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 %

50%
67%

42%
71%

75%
4%
Karthus Boots
Win %
Buy %

52%
70%

46%
7%

50%
1%
Karthus Support Items
Win %
Buy %

49%
79%

100%
1%

25%
1%

0%
1%