Tier: Off MetaWin29.75%Role0.96%Pick0.03%Ban3.79%Games: 98KDA: 1.54Score: 44.34
Karthus Support is ranked Off Meta Tier and has a 29.75% win rate in LoL Patch 25.16. We've analyzed 98 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Blackfire Torch, Malignance, Sorcerer's Shoes, Liandry's Torment, Shadowflame, and Zaz'Zak's Realmspike. For runes, the strongest choice is Sorcery (Primary) with Arcane Comet (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Flash and Exhaust. Starting items should include Doran's Ring, Health Potion, and Stealth Ward. Karthus's Best Support matchups include Pyke and Leona. Karthus's Best Support counters are Braum and Thresh.
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Karthus Summoner Spells


Win %
Pick %
36%
88%
33%
84%

46%
24%

100%
1%

0%
3%
Karthus Starting Items
Win %
Buy %


2

100%
1%
Karthus Runes
Win %
Pick %
56%
20%
52%
19%
25%
40%
32%
3%
Karthus Items

40%

38%

31%

27%

55%

35%

37%

44%
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 %

37%
93%

42%
68%

25%
4%
Karthus Boots
Win %
Buy %

31%
72%

33%
6%
Karthus Support Items
Win %
Buy %

35%
67%

53%
19%

0%
2%

0%
1%