Tier: BWin55.91%Role4.81%Pick0.11%Ban2.22%Games: 101KDA: 2.24Score: 53.42
Karthus Support is ranked B Tier and has a 55.91% win rate in LoL Patch 25.06. We've analyzed 101 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Blackfire Torch, Sorcerer's Shoes, Zaz'Zak's Realmspike, Malignance, Liandry's Torment, and Shadowflame. 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 Oracle Lens. Karthus's Best Support matchups include Brand, Thresh, and Rakan. Karthus's Best Support counters are Milio, Nami, and Rell.
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Karthus Summoner Spells
Win %
Pick %
52%
94%
60%
79%
44%
9%
33%
12%
100%
1%
100%
1%
Karthus Starting Items
Win %
Buy %
2
52%
93%
Karthus Runes
Win %
Pick %
53%
55%
71%
23%
38%
3%
26%
4%
Karthus Items
64%
57%
53%
47%
62%
48%
56%
52%
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
28001100
2700
3000
3200
750Karthus Trinkets
Win %
Buy %
56%
83%
53%
43%
0%
3%
Karthus Boots
Win %
Buy %
57%
73%
50%
4%
50%
2%
0%
1%
0%
1%
Karthus Support Items
Win %
Buy %
53%
89%
100%
2%
Average ADC Duo Queue Champions for Karthus Support(49% - 51% win rate with Karthus)
Even Support Matchups for Karthus Support(49% - 51% win rate for Karthus)
Even ADC Matchups for Karthus Support(49% - 51% win rate for Karthus)
