Tier: Off MetaWin100.00%Role1.09%Pick0.01%Ban3.35%Games: 2KDA: 2.92Score: 64.22
Karthus Support is ranked Off Meta Tier and has a 100.00% win rate in LoL Patch 25.04. We've analyzed 2 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Sorcerer's Shoes, Blackfire Torch, Shadowflame, Mejai's Soulstealer, Rabadon's Deathcap, 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 Exhaust and Flash. Starting items should include World Atlas and Health Potion.
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Karthus Summoner Spells
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Win %
Pick %
100%
100%
100%
50%
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100%
50%
Karthus Starting Items
Win %
Buy %

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2
100%
50%
Karthus Runes
Win %
Pick %
100%
50%
100%
50%
Karthus Items

100%

100%

100%

100%

100%

100%

100%

100%
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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
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
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Karthus Trinkets
Win %
Buy %

100%
150%

100%
50%
Karthus Boots
Win %
Buy %

100%
50%
Karthus Support Items
Win %
Buy %

100%
50%
Duos and Counters
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