Karthus Support is ranked Off Meta Tier and has a 46.79% win rate in LoL Ultimate Spellbook Patch 14.20. We've analyzed 83 Karthus Support games to compile our statistical Karthus Spellbook Build Guide. For items, our build recommends: Sorcerer's Shoes, Malignance, Blackfire Torch, Liandry's Torment, Zaz'Zak's Realmspike, and Shadowflame. 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, World Atlas, Health Potion, and Stealth Ward. Karthus's Best Spellbook Support matchups include Leona, Lulu, and Senna. Karthus's Best Spellbook Support counters are Ashe, Morgana, and Swain.
Karthus Summoner Spells
Karthus Starting Items
Karthus Runes
Karthus Items
Karthus Skill Order
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