Tier: Off MetaWin39.99%Role1.69%Pick0.04%Ban2.67%Games: 46KDA: 1.44Score: 48.11
Karthus Support is ranked Off Meta Tier and has a 39.99% win rate in LoL Patch 25.08. We've analyzed 46 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Blackfire Torch, Malignance, Liandry's Torment, Sorcerer's Shoes, Void Staff, 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 Senna. Karthus's Best Support counters are Pantheon and Thresh.
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Karthus Summoner Spells


Win %
Pick %
46%
89%
42%
72%

50%
13%

50%
9%

50%
9%

0%
2%
Karthus Starting Items
Win %
Buy %


2

41%
89%


2

75%
9%
Karthus Runes
Win %
Pick %
48%
31%
38%
26%
47%
11%
100%
3%
Karthus Items

52%

29%

48%

40%

67%

46%

44%

0%
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 %

44%
78%

36%
78%

40%
11%
Karthus Boots
Win %
Buy %

40%
65%

67%
13%

50%
9%

50%
4%

0%
2%

0%
2%
Karthus Support Items
Win %
Buy %

46%
76%

100%
2%

0%
2%

0%
7%