Karthus is ranked Tier and has a 85.96% win rate in LoL AR URF Patch 25.15. We've analyzed 33 Karthus games to compile our statistical Karthus AR URF Build Guide. For items, our build recommends: Sorcerer's Shoes, Malignance, Blackfire Torch, Liandry's Torment, Shadowflame, and Rabadon's Deathcap. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Sorcery (Secondary). The optimal Summoner Spells for this build are Exhaust and Flash. Starting items should include Amplifying Tome, Health Potion, and Stealth Ward. Karthus's Best AR URF matchups include Alistar, Kog'Maw, and Lux. Karthus's Best AR URF counters are Malphite.
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Karthus Summoner Spells
Win %
Pick %
82%
52%
54%
73%
67%
18%
44%
27%
100%
12%
100%
9%
Karthus Starting Items
Win %
Buy %
2
83%
36%
2
55%
33%
Karthus Runes
Win %
Pick %
72%
62%
47%
19%
67%
9%
Karthus Items
76%
64%
73%
61%
76%
70%
55%
56%
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
1100
2700
2800
3000
32003500
500Karthus Trinkets
Win %
Buy %
55%
88%
80%
15%
100%
9%
Karthus Boots
Win %
Buy %
76%
64%
Karthus Situational Items
Win %
Buy %
64%
33%
71%
21%
67%
18%
100%
6%
100%
6%
100%
3%
Average Karthus Duo Champions in AR URF(49% - 51% win rate with Karthus)
Below Average Karthus Duo Champions in AR URF(under 49% win rate with Karthus)
Best Champions to Counter Karthus in AR URF(under 49% win rate for Karthus)
Even Matchups for Karthus in AR URF(49% - 51% win rate for Karthus)
