Tier: Off MetaWin41.67%Role26.67%Pick0.26%Ban0.00%Games: 9KDA: 4.15Score: 48.28
Karthus Support is ranked Off Meta Tier and has a 41.67% win rate in LoL Swiftplay Patch 25.04. We've analyzed 9 Karthus Support games to compile our statistical Karthus Swiftplay Build Guide. For items, our build recommends: Malignance, Blackfire Torch, Sorcerer's Shoes, Shadowflame, Stormsurge, and Zaz'Zak's Realmspike. 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 World Atlas, Health Potion, and Stealth Ward.
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Karthus Summoner Spells
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Win %
Pick %
44%
100%
40%
56%

50%
44%
Karthus Starting Items
Win %
Buy %


2

44%
100%
Karthus Runes
Win %
Pick %
44%
93%
Karthus Items

43%

40%

40%

40%

75%

40%

44%

50%
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
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



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
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

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
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
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Karthus Trinkets
Win %
Buy %
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44%
100%

50%
67%

50%
44%
Karthus Boots
Win %
Buy %

40%
56%
Karthus Support Items
Win %
Buy %

40%
56%

33%
33%