Karthus is ranked Tier and has a 37.50% win rate in LoL ARAM Patch 25.09. We've analyzed 8 Karthus games to compile our statistical Karthus ARAM Build Guide. For items, our build recommends: Blackfire Torch, Malignance, Sorcerer's Shoes, Liandry's Torment, Rabadon's Deathcap, and Seraph's Embrace. 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 %
43%
88%
50%
75%
0%
38%
Karthus Starting Items
Win %
Buy %
20%
63%
2
100%
13%
Karthus Runes
Win %
Pick %
52%
44%
55%
23%
0%
25%
Karthus Items
40%
25%
50%
43%
40%
100%
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
2700
11003000
3600Karthus Situational Items
Win %
Buy %
100%
13%
100%
13%
100%
13%
0%
13%
0%
13%
0%
25%
Karthus Boots
Win %
Buy %
50%
75%
Average Karthus Duo Champions in ARAM(49% - 51% win rate with Karthus)
