Karthus is ranked Tier and has a 34.85% win rate in LoL AR URF Patch 25.04. We've analyzed 17 Karthus games to compile our statistical Karthus AR URF Build Guide. For items, our build recommends: Malignance, Blackfire Torch, Liandry's Torment, Shadowflame, Sorcerer's Shoes, 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 Flash and Ghost. Starting items should include Doran's Ring, Health Potion, and Stealth Ward. Karthus's Best AR URF counters are Caitlyn.
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Karthus Summoner Spells
Win %
Pick %
50%
82%
57%
41%
38%
47%
100%
6%
25%
24%
Karthus Starting Items
Win %
Buy %
2
44%
53%
2
50%
35%
Karthus Runes
Win %
Pick %
50%
59%
51%
34%
0%
6%
Karthus Items
60%
63%
62%
30%
50%
33%
50%
0%
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
2800
3000
320011003600
750Karthus Trinkets
Win %
Buy %
50%
94%
60%
29%
50%
12%
Karthus Boots
Win %
Buy %
50%
71%
Karthus Situational Items
Win %
Buy %
20%
29%
100%
6%
100%
6%
0%
12%
0%
6%
0%
6%
Average Karthus Duo Champions in AR URF(49% - 51% 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)
