Tier: Off MetaWin39.88%Role0.86%Pick0.03%Ban1.84%Games: 40KDA: 1.63Score: 46.77
Karthus Support is ranked Off Meta Tier and has a 39.88% win rate in LoL Patch 25.13. We've analyzed 40 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Malignance, Blackfire Torch, Sorcerer's Shoes, Liandry's Torment, Zaz'Zak's Realmspike, 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 Amplifying Tome, Health Potion, and Stealth Ward. Karthus's Best Support matchups include Karma and Soraka. Karthus's Best Support counters are Lulu.
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Karthus Summoner Spells
Win %
Pick %
38%
85%
39%
78%
33%
30%
100%
3%
0%
3%
0%
3%
Karthus Starting Items
Win %
Buy %
2
100%
3%
2
100%
3%
Karthus Runes
Win %
Pick %
37%
34%
38%
24%
40%
20%
100%
3%
Karthus Items
39%
37%
39%
48%
34%
47%
38%
47%
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
2700
28001100
3000400
3200
500Karthus Trinkets
Win %
Buy %
38%
98%
46%
60%
25%
10%
Karthus Boots
Win %
Buy %
39%
83%
100%
3%
0%
10%
Karthus Support Items
Win %
Buy %
34%
88%
0%
3%
Average ADC Duo Queue Champions for Karthus Support(49% - 51% win rate with Karthus)
Best Support Champions to Counter Karthus Support(under 49% win rate for Karthus)
Even Support Matchups for Karthus Support(49% - 51% win rate for Karthus)
Best ADC Matchups for Karthus Support(over 51% win rate for Karthus)
Even ADC Matchups for Karthus Support(49% - 51% win rate for Karthus)
