Karthus is ranked Tier and has a 33.33% win rate in LoL AR URF Patch 25.16. We've analyzed 6 Karthus games to compile our statistical Karthus AR URF Build Guide. For items, our build recommends: Stormsurge, Liandry's Torment, Shadowflame, Rabadon's Deathcap, Morellonomicon, and Horizon Focus. For runes, the strongest choice is Resolve (Primary) with Grasp of the Undying (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Ghost and Smite. Starting items should include Amplifying Tome and Oracle Lens. Karthus's Best AR URF matchups include Malphite. Karthus's Best AR URF counters are Ahri and Twitch.
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Karthus Summoner Spells
Win %
Pick %
67%
50%
25%
67%
33%
50%
0%
33%
Karthus Starting Items
Win %
Buy %
100%
17%
33%
50%
Karthus Runes
Win %
Pick %
100%
17%
38%
44%
0%
22%
Karthus Items
100%
50%
25%
25%
100%
100%
33%
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
2800
300032003500
2850
2800Karthus Trinkets
Win %
Buy %
33%
50%
33%
50%
Karthus Boots
Win %
Buy %
20%
83%
Karthus Situational Items
Win %
Buy %
25%
67%
0%
17%
Average Karthus Duo Champions in AR URF(49% - 51% win rate with Karthus)
Best Matchups for Karthus in AR URF(over 51% win rate for Karthus)
Even Matchups for Karthus in AR URF(49% - 51% win rate for Karthus)
