Karthus is ranked Tier and has a 50.00% win rate in LoL ARAM Patch 25.08. We've analyzed 17 Karthus games to compile our statistical Karthus ARAM Build Guide. For items, our build recommends: Blackfire Torch, Sorcerer's Shoes, Liandry's Torment, Malignance, Shadowflame, and Void Staff. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Flash and Mark. Starting items should include Lost Chapter and Health Potion. Karthus's Best ARAM matchups include Thresh. Karthus's Best ARAM counters are Ezreal.
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Karthus Summoner Spells
Win %
Pick %
53%
100%
67%
71%
50%
12%
0%
6%
0%
12%
Karthus Starting Items
Win %
Buy %
2
58%
71%
100%
6%
Karthus Runes
Win %
Pick %
100%
22%
32%
56%
100%
6%
100%
6%
Karthus Items
63%
56%
55%
55%
62%
57%
100%
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
11003000
2700
3200
3000Karthus Situational Items
Win %
Buy %
60%
29%
50%
12%
50%
12%
100%
6%
0%
12%
0%
6%
Karthus Boots
Win %
Buy %
56%
53%
Best Karthus Duo Champions in ARAM(over 51% win rate with Karthus)
Average Karthus Duo Champions in ARAM(49% - 51% win rate with Karthus)
Best Champions to Counter Karthus in ARAM(under 49% win rate for Karthus)
Best Matchups for Karthus in ARAM(over 51% win rate for Karthus)
Even Matchups for Karthus in ARAM(49% - 51% win rate for Karthus)
