Karthus Support is ranked Off Meta Tier and has a 39.82% win rate in LoL Patch 8.24. We've analyzed 438 Karthus Support games to compile our statistical Karthus Build Guide. For items, our build recommends: Rod of Ages, Sorcerer's Shoes, Remnant of the Watchers, Luden's Echo, Morellonomicon, 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 Exhaust. Starting items should include Health Potion, Spellthief's Edge, Doran's Ring, Ancient Coin, and Warding Totem (Trinket). Karthus's Best Support matchups include Alistar, Blitzcrank, and Sona. Karthus's Best Support counters are Lulu, Soraka, and Fiddlesticks.
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)
Even Support Matchups for Karthus Support(49% - 51% win rate for Karthus)
Even ADC Matchups for Karthus Support(49% - 51% win rate for Karthus)
