Karthus is ranked Tier and has a 45.83% win rate in LoL ARAM Patch 25.S1.3. We've analyzed 25 Karthus games to compile our statistical Karthus ARAM Build Guide. For items, our build recommends: Malignance, Blackfire Torch, Liandry's Torment, Sorcerer's Shoes, Shadowflame, and Bloodletter's Curse. 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 Mordekaiser and Seraphine.
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Karthus Summoner Spells
Win %
Pick %
44%
100%
42%
96%
100%
4%
Karthus Starting Items
Win %
Buy %
42%
76%
2
33%
12%
Karthus Runes
Win %
Pick %
49%
59%
41%
19%
100%
4%
0%
4%
Karthus Items
45%
30%
45%
38%
43%
75%
25%
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
28003000
1100
3200
2900Karthus Situational Items
Win %
Buy %
50%
24%
50%
16%
25%
32%
100%
4%
100%
4%
100%
4%
Karthus Boots
Win %
Buy %
38%
52%
75%
16%
Best Karthus Duo Champions in ARAM(over 51% win rate with Karthus)
Average Karthus Duo Champions in ARAM(49% - 51% win rate with Karthus)
Even Matchups for Karthus in ARAM(49% - 51% win rate for Karthus)
