Tier: SWin66.77%Pick6.53%Games: 570KDA: 2.51Score: 54.23
Karthus is ranked S Tier and has a 66.77% win rate in LoL AR URF Patch 25.04. We've analyzed 570 Karthus games to compile our statistical Karthus AR URF Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Liandry's Torment, Shadowflame, Rabadon's Deathcap, and Void Staff. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Sorcery (Secondary). The optimal Summoner Spells for this build are Flash and Exhaust. Starting items should include Amplifying Tome, Health Potion, and Oracle Lens. Karthus's Best AR URF matchups include Tristana, Yasuo, and Aurelion Sol. Karthus's Best AR URF counters are Braum, Olaf, and Gwen.
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Karthus Summoner Spells


Win %
Pick %
56%
88%
57%
40%

60%
37%

56%
17%

64%
9%

42%
6%
Karthus Starting Items
Win %
Buy %


2

56%
43%


2

58%
24%
Karthus Runes
Win %
Pick %
56%
58%
60%
16%
60%
14%
61%
1%
Karthus Items

57%

58%

56%

58%

57%

55%

57%

57%
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 %

57%
90%

52%
11%

55%
8%
Karthus Boots
Win %
Buy %

58%
69%

67%
1%

50%
1%

33%
1%

33%
1%

0%
0%
Karthus Situational Items
Win %
Buy %

58%
31%

61%
24%

65%
6%

72%
6%

54%
7%

56%
6%
Best Karthus Duo Champions in AR URF(over 51% win rate with Karthus)

+22.3

+21.7

+21.7

+21.7

+20.4

+20.4

+20.4

+20.4

+19.8

+19.0

+19.0

+19.0

+18.2

+18.2

+16.9

+16.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+13.3

+12.6

+12.6

+12.6

+12.2

+11.5

+10.9

+10.9

+10.9

+10.5

+10.1

+9.5

+9.0

+9.0

+9.0

+9.0

+9.0

+9.0

+9.0

+8.3

+8.1

+7.8

+7.8

+7.3

+7.3

+6.9

+6.1

+6.1

+6.1

+5.5

+4.6

+4.6

+4.6

+4.6

+4.6

+4.0

+3.5

+3.5

+3.5

+3.5

+3.5

+2.8

+2.8

+2.6

+2.3

+1.4

+1.4

+1.0
Best Matchups for Karthus in AR URF(over 51% win rate for Karthus)

+22.1

+21.7

+20.4

+20.4

+19.0

+18.8

+18.2

+18.2

+18.2

+18.2

+18.0

+17.4

+16.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+15.7

+14.2

+13.9

+13.7

+13.7

+13.3

+13.3

+13.0

+12.2

+11.9

+11.9

+11.5

+10.5

+10.5

+10.5

+10.1

+9.9

+9.7

+9.0

+9.0

+9.0

+9.0

+8.1

+8.1

+8.1

+7.6

+7.6

+7.3

+7.3

+7.3

+7.3

+7.3

+7.3

+7.3

+6.9

+6.9

+6.7

+6.1

+6.1

+5.8

+5.7

+5.7

+5.5

+5.2

+5.0

+4.6

+4.6

+4.6

+4.6

+4.6

+4.2

+3.5

+3.5

+3.5

+3.5

+3.2

+2.8

+2.8

+2.6

+2.3

+2.3

+2.3

+1.6

+1.4

+1.2