Karthus Support is ranked Off Meta Tier and has a 69.98% win rate in LoL Ultimate Spellbook Patch 14.21. We've analyzed 94 Karthus Support games to compile our statistical Karthus Spellbook Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Liandry's Torment, Shadowflame, Zaz'Zak's Realmspike, and Rabadon's Deathcap. 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, and Glowing Mote. Karthus's Best Spellbook Support matchups include Lux, Senna, and Pyke. Karthus's Best Spellbook Support counters are Blitzcrank and Malphite.
Karthus Summoner Spells
Karthus Starting Items
Karthus Runes
Karthus Items
Karthus Skill Order
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