Karthus Support is ranked Off Meta Tier and has a 41.03% win rate in LoL Patch 7.24. We've analyzed 34 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Frost Queen's Claim, Sorcerer's Shoes, Rod of Ages, Morellonomicon, Liandry's Torment, and Rylai's Crystal Scepter. For runes, the strongest choice is Sorcery (Primary) with Summon Aery (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 counters are Leona.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 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)
Below Average ADC Duo Queue Champions for Karthus Support(under 49% win rate with Karthus)
Best Support Champions to Counter Karthus Support(under 49% win rate for 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)
