Tier: Off MetaWin41.10%Role2.09%Pick0.05%Ban5.85%Games: 65KDA: 1.72Score: 46.68
Karthus Support is ranked Off Meta Tier and has a 41.10% win rate in LoL Patch 14.14. We've analyzed 65 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Blackfire Torch, Rylai's Crystal Scepter, Liandry's Torment, 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 and Health Potion. Karthus's Best Support matchups include Blitzcrank, Seraphine, and Zyra. Karthus's Best Support counters are Rell.
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Karthus Summoner Spells


Win %
Pick %
37%
91%
44%
42%

56%
25%

30%
31%

17%
9%

0%
2%
Karthus Starting Items
Win %
Buy %


2
29%
37%
Karthus Runes
Win %
Pick %
44%
41%
53%
15%
68%
5%
11%
14%
Karthus Items

31%

31%

39%

60%

41%

41%

40%

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 %

40%
82%

41%
63%

0%
5%
Karthus Boots
Win %
Buy %

31%
55%

71%
11%

20%
8%
Karthus Support Items
Win %
Buy %

41%
78%

0%
2%