Karthus is ranked Tier and has a 26.92% win rate in LoL AR URF Patch 25.15. We've analyzed 34 Karthus games to compile our statistical Karthus AR URF Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Stormsurge, 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 Flash and Ghost. Starting items should include Amplifying Tome, Health Potion, and Stealth Ward. Karthus's Best AR URF matchups include Garen, Neeko, and Qiyana. Karthus's Best AR URF counters are Cho'Gath, LeBlanc, and Lulu.
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Karthus Summoner Spells
Win %
Pick %
57%
88%
54%
38%
80%
15%
33%
35%
50%
12%
33%
9%
Karthus Starting Items
Win %
Buy %
2
60%
29%
2
42%
35%
Karthus Runes
Win %
Pick %
56%
58%
49%
17%
41%
19%
100%
3%
Karthus Items
52%
54%
54%
47%
55%
48%
55%
48%
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
1100
2800
3000
32003500
500Karthus Trinkets
Win %
Buy %
55%
97%
60%
15%
100%
3%
Karthus Boots
Win %
Buy %
54%
82%
67%
9%
100%
3%
Karthus Situational Items
Win %
Buy %
54%
38%
41%
50%
60%
15%
75%
12%
100%
6%
0%
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)
Even Matchups for Karthus in AR URF(49% - 51% win rate for Karthus)
