Karthus Mid Lane is ranked A Tier and has a 57.67% win rate in LoL Patch 8.24. We've analyzed 6919 Karthus Mid Lane games to compile our statistical Karthus Build Guide. For items, our build recommends: Rod of Ages, Sorcerer's Shoes, Luden's Echo, Morellonomicon, Zhonya's Hourglass, and Rabadon's Deathcap. For runes, the strongest choice is Domination (Primary) with Dark Harvest (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Flash and Ignite. Starting items should include Health Potion, Doran's Ring, Corrupting Potion, The Dark Seal, and Warding Totem (Trinket). Karthus's Best Mid Lane matchups include Mordekaiser, Corki, and Twisted Fate. Karthus's Best Mid Lane counters are Cho'Gath, Kayle, and Ziggs.
Karthus Summoner Spells






Karthus Starting Items





Karthus Runes
Karthus Items








Karthus Skill Order
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Karthus Trinkets



Karthus Boots





