Karthus Support is ranked B Tier and has a 53.09% win rate in LoL Ultimate Spellbook Patch 11.24. We've analyzed 81 Karthus Support games to compile our statistical Karthus Spellbook Build Guide. For items, our build recommends: Liandry's Anguish, Sorcerer's Shoes, Archangel's Staff, Morellonomicon, Rabadon's Deathcap, and Shard of True Ice. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Placeholder and Flash. Starting items should include Tear of the Goddess, Spellthief's Edge, Health Potion, and Stealth Ward. Karthus's Best Spellbook Support matchups include Leona, Shaco, and Yuumi. Karthus's Best Spellbook Support counters are Swain.
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
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3600Karthus Ultimate Spellbook Stats
Karthus Trinkets
Karthus Boots
Karthus Mythic Items
Average ADC Duo Queue Champions for Karthus Support in Ultimate Spellbook(49% - 51% win rate with Karthus)
Best Support Champions to Counter Karthus Support(under 49% win rate for Karthus)
Even Support Matchups for Karthus Support in Ultimate Spellbook(49% - 51% win rate for Karthus)
Best ADC Champions to Counter Karthus Support(under 49% win rate for Karthus)
Even ADC Matchups for Karthus Support in Ultimate Spellbook(49% - 51% win rate for Karthus)
