Karthus Support is ranked Off Meta Tier and has a 52.76% win rate in LoL Ultimate Spellbook Patch 11.24. We've analyzed 53 Karthus Support games to compile our statistical Karthus Spellbook Build Guide. For items, our build recommends: Sorcerer's Shoes, Liandry's Anguish, Zhonya's Hourglass, Rabadon's Deathcap, Shard of True Ice, 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 Placeholder and Flash. Starting items should include Amplifying Tome, Spellthief's Edge, Health Potion, and Stealth Ward. Karthus's Best Spellbook Support matchups include Lux, Seraphine, and Pyke. Karthus's Best Spellbook Support counters are Leona and Nami.
Karthus Summoner Spells
Karthus Starting Items
Karthus Runes
Karthus Items
Karthus Skill Order
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