Karthus is ranked Tier and has a 63.84% win rate in LoL ARAM Patch 25.11. We've analyzed 42 Karthus games to compile our statistical Karthus ARAM Build Guide. For items, our build recommends: Sorcerer's Shoes, Malignance, Liandry's Torment, Rylai's Crystal Scepter, 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 Mark. Starting items should include Lost Chapter and Refillable Potion. Karthus's Best ARAM matchups include Jhin, Miss Fortune, and Smolder. Karthus's Best ARAM counters are LeBlanc, Shaco, and Veigar.
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Karthus Summoner Spells
Win %
Pick %
52%
100%
51%
98%
100%
2%
Karthus Starting Items
Win %
Buy %
59%
64%
50%
5%
Karthus Runes
Win %
Pick %
56%
46%
40%
35%
67%
7%
50%
5%
Karthus Items
48%
52%
53%
80%
50%
57%
50%
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
3000
2600
32003500Karthus Situational Items
Win %
Buy %
54%
31%
40%
24%
33%
7%
33%
7%
50%
5%
50%
5%
Karthus Boots
Win %
Buy %
48%
60%
0%
5%
Average Karthus Duo Champions in ARAM(49% - 51% win rate with Karthus)
Even Matchups for Karthus in ARAM(49% - 51% win rate for Karthus)
