Karthus Support is ranked Off Meta Tier and has a 43.66% win rate in LoL Patch 7.24. We've analyzed 184 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Rod of Ages, Eye of the Watchers, Sorcerer's Shoes, Zhonya's Hourglass, Void Staff, and Rabadon's Deathcap. For runes, the strongest choice is Sorcery (Primary) with Arcane Comet (Keystone), and <pathBonus><pathSorcery>Sorcery</pathSorcery> + <pathInspiration>Inspiration</pathInspiration> </pathBonus> (Secondary). The optimal Summoner Spells for this build are Flash and Exhaust. Starting items should include Health Potion, Spellthief's Edge, Refillable Potion, Doran's Ring, and Warding Totem (Trinket). Karthus's Best Support matchups include Karma, Lux, and Malphite. Karthus's Best Support counters are Lulu, Shen, and Sona.
Karthus Summoner Spells
Karthus Starting Items
Karthus Runes
Karthus Items
Karthus Skill Order
 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
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 | Q | Q | Q | Q | Q | |||||||||||||
 | W | W | W | W | W | |||||||||||||
 | E | E | E | E | E | |||||||||||||
 | R | R | R |
Karthus Trinkets
Karthus Boots
Average ADC Duo Queue Champions for Karthus Support(49% - 51% win rate with Karthus)
Even Support Matchups for Karthus Support(49% - 51% win rate for Karthus)
Even ADC Matchups for Karthus Support(49% - 51% win rate for Karthus)
