KarthusSupport build

Off-meta Support

Jungle65%Bot19%Mid8%Top5%Support3%
Win
46.1%
▼3.9 vs Support
LP a game
+0.90
±0.46
Games
8,879
a win +22.7 · a loss −18.1
Pick · Ban
0.07 · 0.50%
as Support · any role

How we measure

Karthus Support, patch 26.21: Blackfire Torch, Malignance, Shadowflame; Dark Harvest + Sorcery; skill order Q > E > W (each the most played of 8,879 games).

Build

Most played of 8,879 games

Start

Hp

85% · 45.8% won

Spells

ExFl

54% · 46.2% won

Skills

starts Q E W

31% · 47.4% won

Items 10.5% of games with a core

  1. Blackfire Torch
  2. Malignance
  3. Shadowflame
4th
  • Rd53.7%won39% · 118pick, 118 games
  • Lt59.1%won22% · 67pick, 67 games
  • St51.5%won20% · 61pick, 61 games
5th
  • Rd56.3%won37% · 40pick, 40 games
  • St59.8%won17% · 18pick, 18 games
  • Lt58.8%won13% · 14pick, 14 games

52.0% won (47.8–56.2) · 546 games

4th: of the 299 games with this core that reached it · 5th: of the 108 games with this core that reached it. Win rates there are pulled toward the champion's rate at the slot, because a few games say little.

BootsSorcerer's Shoes64% · 46.6% won

Skill path 25% of games · 48.7% won

Skill path: the first 11 points measured, levels 12 to 18 from the max order
Ability123456789101112131415161718
QQ14579
WW314151718
EE28101213
RR61116

Core items

First three finished, in the order bought
  1. Blackfire Torch › Malignance › Shadowflame546 gamesMost played10%52.0%48% to 56%
  2. Blackfire Torch › Shadowflame › Liandry's Torment534 games10%53.2%49% to 57%
  3. Malignance › Shadowflame › Liandry's Torment429 games8.2%49.7%45% to 54%
  4. Blackfire Torch › Shadowflame › Rabadon's Deathcap246 games4.7%52.9%47% to 59%
  5. Malignance › Shadowflame › Rabadon's Deathcap239 games4.6%51.1%45% to 57%
  6. Malignance › Blackfire Torch › Liandry's Torment159 games3.1%49.7%42% to 57%

Skills

Max order
  1. starts Q E W31%47.4%2,600
  2. starts Q W E24%45.1%2,073
  3. starts Q E Q16%48.5%1,368
  4. starts Q W E7.2%45.5%613
  5. starts Q W Q6.2%47.7%524

Starting items

2 × Health Potion85% · 45.8% won · 6,589 games
  • Control Ward 5.3%49.4% won
  • Health Potion 4.9%46.3% won

Boots

Sorcerer's Shoes64% · 46.6% won · 5,663 games
  • No boots 26%46.1% won
  • Ionian Boots of Lucidity 8.4%43.4% won

Summoner spells

Exhaust + Flash54% · 46.2% won · 4,755 games
  • Flash + Ignite 17%45.6% won
  • Exhaust + Ignite 10%48.1% won
Every option as a table55 options
Every build option with its pick, win rate and 95% range
OptionPickWin95% rangeGames
Core items
Blackfire Torch › Malignance › Shadowflame10%52.0%47.8%–56.2%546
Blackfire Torch › Shadowflame › Liandry's Torment10%53.2%48.9%–57.4%534
Malignance › Shadowflame › Liandry's Torment8.2%49.7%44.9%–54.4%429
Blackfire Torch › Shadowflame › Rabadon's Deathcap4.7%52.9%46.6%–59.0%246
Malignance › Shadowflame › Rabadon's Deathcap4.6%51.1%44.7%–57.3%239
Malignance › Blackfire Torch › Liandry's Torment3.1%49.7%42.0%–57.4%159
4th item, of 2,432 games that reached it
Rabadon's Deathcap29%54.7%51.0%–58.3%708
Stormsurge14%57.2%51.9%–62.3%341
Shadowflame11%51.9%45.9%–57.8%266
Void Staff9.8%49.6%43.3%–55.9%238
Liandry's Torment8.0%57.7%50.7%–64.5%194
Zhonya's Hourglass6.3%53.6%45.7%–61.3%153
5th item, of 876 games that reached it
Rabadon's Deathcap27%53.4%47.0%–59.7%236
Void Staff15%58.5%49.9%–66.6%130
Stormsurge13%52.7%43.5%–61.7%112
ShadowflameFew games10%58.2%48.0%–67.8%91
Liandry's TormentFew games6.9%51.7%39.3%–63.8%60
Zhonya's HourglassFew games6.1%60.4%46.9%–72.4%53
6th item, of 195 games that reached it
Void StaffFew games20%66.7%51.0%–79.4%39
Rabadon's DeathcapFew games15%60.0%42.3%–75.4%30
StormsurgeFew games13%64.0%44.5%–79.8%25
Boots
Sorcerer's Shoes64%46.6%45.3%–47.9%5,663
No boots26%46.1%44.1%–48.1%2,342
Ionian Boots of Lucidity8.4%43.4%39.9%–47.0%742
Boots of SwiftnessFew games0.8%45.7%34.6%–57.3%70
Plated SteelcapsFew games0.3%40.0%23.4%–59.3%25
Starting items
2 × Health Potion85%45.8%44.6%–47.0%6,589
Control Ward5.3%49.4%44.6%–54.2%413
Health Potion4.9%46.3%41.4%–51.4%382
Amplifying Tome + 2 × Health PotionFew games0.7%51.0%37.7%–64.1%51
Summoner spells
Exhaust + Flash54%46.2%44.8%–47.6%4,755
Flash + Ignite17%45.6%43.1%–48.1%1,536
Exhaust + Ignite10%48.1%44.9%–51.3%927
Flash + Heal7.1%43.7%39.9%–47.6%629
Skill order
Max Q E W · starts Q E W31%47.4%45.5%–49.3%2,600
Max Q E W · starts Q W E24%45.1%43.0%–47.3%2,073
Max Q E W · starts Q E Q16%48.5%45.8%–51.1%1,368
Max Q W E · starts Q W E7.2%45.5%41.6%–49.5%613
Max Q E W · starts Q W Q6.2%47.7%43.5%–52.0%524
First 11 skill points
Q E W Q Q R Q E Q E R25%48.7%46.5%–50.8%2,026
Q W E Q Q R Q E Q E R19%44.8%42.4%–47.3%1,532
Q E Q W Q R Q E Q E R14%50.2%47.3%–53.1%1,139
Q W Q E Q R Q E Q E R5.0%45.4%40.6%–50.3%401
Q W E Q Q R Q W Q W R3.5%42.7%37.1%–48.6%281
Q E W W Q R Q Q Q E R2.2%48.0%40.8%–55.3%179
Finished items
Zaz'Zak's Realmspike82%46.1%45.0%–47.3%7,260
Liandry's Torment37%50.5%48.8%–52.2%3,260
Rabadon's Deathcap22%52.4%50.2%–54.6%1,990
Stormsurge16%53.9%51.2%–56.5%1,376
Zhonya's Hourglass8.3%50.2%46.6%–53.8%737
Void Staff8.3%50.7%47.1%–54.4%735
Rylai's Crystal Scepter5.1%48.1%43.6%–52.7%455
Morellonomicon4.6%46.3%41.6%–51.2%410
Luden's Echo2.7%47.9%41.7%–54.2%242
Horizon Focus2.6%51.1%44.7%–57.5%231

Questions

What do Karthus Support players build first on all servers?

The most played core is Blackfire Torch, then Malignance, then Shadowflame: 6% of 8,879 games in all ranks, patch 26.21, 52.0% win rate.

What skill order do Karthus Support players use?

Most often they max Q, E, W and start Q, E, W: 31% of 8,508 games with a skill order in all ranks, patch 26.21, 47.4% win rate.

Which summoner spells do Karthus Support players take?

Exhaust and Flash, in 54% of 8,879 games in all ranks, patch 26.21, 46.2% win rate.