Karthus Support is ranked Off Meta Tier and has a 43.62% win rate in LoL Ultimate Spellbook Patch 14.21. We've analyzed 1179 Karthus Support games to compile our statistical Karthus Spellbook Build Guide. For items, our build recommends: Malignance, Sorcerer's Shoes, Blackfire Torch, Liandry's Torment, Zaz'Zak's Realmspike, and Shadowflame. 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, World Atlas, and Health Potion. Karthus's Best Spellbook Support matchups include Camille, Lee Sin, and Vel'Koz. Karthus's Best Spellbook Support counters are Soraka, Pantheon, and LeBlanc.
Karthus Summoner Spells
Karthus Starting Items
Karthus Runes
Karthus Items
Karthus Skill Order
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