Karthus is ranked Tier and has a 80.00% win rate in LoL ARAM Patch 25.09. We've analyzed 10 Karthus games to compile our statistical Karthus ARAM Build Guide. For items, our build recommends: Malignance, Liandry's Torment, Rylai's Crystal Scepter, Sorcerer's Shoes, Rabadon's Deathcap, 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 Refillable Potion. Karthus's Best ARAM matchups include Janna.
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Karthus Summoner Spells
Win %
Pick %
80%
100%
80%
100%
Karthus Starting Items
Win %
Buy %
80%
50%
Karthus Runes
Win %
Pick %
71%
35%
100%
28%
100%
18%
0%
10%
Karthus Items
75%
80%
83%
100%
71%
100%
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
2700
3000
26001100
36003000Karthus Situational Items
Win %
Buy %
75%
40%
60%
50%
100%
20%
100%
10%
100%
10%
100%
10%
Karthus Boots
Win %
Buy %
100%
40%
Average Karthus Duo Champions in ARAM(49% - 51% win rate with 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)
