Karthus is ranked Tier and has a 60.75% win rate in LoL ARAM Patch 25.09. We've analyzed 41 Karthus games to compile our statistical Karthus ARAM Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Liandry's Torment, Shadowflame, Void Staff, 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 Maokai, Morgana, and Pyke. Karthus's Best ARAM counters are Ekko, Kennen, and Leona.
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Karthus Summoner Spells
Win %
Pick %
63%
98%
64%
80%
60%
12%
100%
5%
100%
2%
0%
2%
Karthus Starting Items
Win %
Buy %
65%
56%
2
67%
7%
Karthus Runes
Win %
Pick %
67%
44%
52%
36%
100%
6%
100%
2%
Karthus Items
64%
68%
65%
67%
67%
58%
82%
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
3000
3200
30003600Karthus Situational Items
Win %
Buy %
58%
29%
42%
29%
100%
5%
50%
10%
67%
7%
50%
5%
Karthus Boots
Win %
Buy %
68%
83%
50%
5%
Average Karthus Duo Champions in ARAM(49% - 51% win rate with Karthus)
Below Average Karthus Duo Champions in ARAM(under 49% win rate with Karthus)
Even Matchups for Karthus in ARAM(49% - 51% win rate for Karthus)
