Karthus Support is ranked Off Meta Tier and has a 59.06% win rate in LoL Ultimate Spellbook Patch 14.21. We've analyzed 89 Karthus Support games to compile our statistical Karthus Spellbook Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Liandry's Torment, Blackfire Torch, Shadowflame, and Zaz'Zak's Realmspike. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Sorcery (Secondary). The optimal Summoner Spells for this build are Placeholder and Flash. Starting items should include Amplifying Tome, Sapphire Crystal, Health Potion, and Stealth Ward. Karthus's Best Spellbook Support matchups include Pyke, Senna, and Vel'Koz. Karthus's Best Spellbook Support counters are Lux, Nautilus, and Rakan.
Karthus Summoner Spells
Karthus Starting Items
Karthus Runes
Karthus Items
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
30002800
3200400Karthus Ultimate Spellbook Stats
Karthus Trinkets
Karthus Boots
Karthus Support Items
Average ADC Duo Queue Champions for Karthus Support in Ultimate Spellbook(49% - 51% win rate with Karthus)
Even Support Matchups for Karthus Support in Ultimate Spellbook(49% - 51% win rate for Karthus)
Best ADC Matchups for Karthus Support in Ultimate Spellbook(over 51% win rate for Karthus)
Even ADC Matchups for Karthus Support in Ultimate Spellbook(49% - 51% win rate for Karthus)