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Karthus

Karthus

the Deathsinger

Mage
WikiOP.GGU.GGLolalyticsProbuilds
Position:
StatsChartsCombat ProfileMatchupsTeammatesSkill OrderRunes & SummonersItemsBest & BaitItem Builder
Quick summaryWhat most players build

Combat Profile#

Matchups#

Karthus's win rate against every opponent by role. Sort ↓ for favorable matchups, ↑ for counters. Click a champion to filter runes, summoners, and item builds by that matchup.

Teammates#

Karthus's win rate when paired with each teammate by role. Sort ↓ for strongest synergies, ↑ for weakest. Click a champion to filter runes, summoners, and item builds by that pairing.

Skill Order#

Which basic ability (Q/W/E) players max first, second, and third. Last 30 days.

Runes & Summoners#

Most popular rune pages and summoner spell combinations. Last 30 days.

Recommended Items#

Based on the last 30 days of ranked games.

Best & Bait Items#

Which items help and hurt Karthus's win rate, restricted to items bought in ≥3% of games.

Item Builder#

Click an item to lock it in. Later slots re-calculate based on what came before. Sort by pick rate (most common) or win rate (best performing).

Sort by:

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OneTricks
Not enough sample to compute a combat profile for this filter set.
Win Rateⓘ
Pick Rate
Ban Rate
Scalingⓘ
Rank Biasⓘ
Worst Matchupⓘ
Best Matchupⓘ

Win Rate by Game Length

Win Rate by Rank

Pick/Ban/Win Rate Over Time

Presence by Rank

Win Rate Distribution

Starter Items

Doran's Ring
Doran's Ring
92% PR · 48.2% WR
Tear of the Goddess
Tear of the Goddess
7% PR · 50.6% WR

Tier 2 Boots

Sorcerer's Shoes
Sorcerer's Shoes
94% PR · 49.4% WR
Ionian Boots of Lucidity
Ionian Boots of Lucidity
3% PR · 48.3% WR

Best items on Karthus

Highest smoothed win rate among items bought in ≥3% of games.

Rabadon's Deathcap
Rabadon's Deathcap
14% PR · 47 games
54.6%
Liandry's Torment
Liandry's Torment
19% PR · 66 games
50.9%
Zhonya's Hourglass
Zhonya's Hourglass
11% PR · 37 games
49.4%
Blackfire Torch
Blackfire Torch
42% PR · 144 games
47.9%
Shadowflame
top
Karthus's WR vs enemy top. Sort ↓ for Karthus's easiest matchups, ↑ for hardest (strongest counters).
Matchup score from Karthus's perspective. Z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR), pooled across this opponent role. Positive = favorable matchup, negative = hard matchup (strong counter). Same shape as the item synergy / counter pick / duo rankings.Karthus's Bayesian-smoothed win rate against this opponent. (wins + 25) / (games + 50).Bidirectional matchup delta: avg of Karthus's gain over its baseline and the opponent's loss against its own. Positive = lopsided in Karthus's favor. Hover a row for the per-side breakdown.Number of games observed. More games = more reliable WR.
YoneFilter
+2.2752.3%+3.2%15
VolibearFilter
+1.6153.6%+4.7%6
OrnnFilter
+1.3552.7%+5.0%5
SionFilter
+1.3051.7%+2.8%10
CamilleFilter
+1.2052.7%+4.4%5
GarenFilter
+0.9250.9%+3.0%7
UrgotFilter
+0.9252.8%+5.4%3
VayneFilter
+0.8550.8%+2.1%11
YasuoFilter
+0.7850.8%+2.2%9
GnarFilter
+0.7251.8%+2.4%6
Dr. MundoFilter
+0.6851.9%+3.3%4
ZaahenFilter
+0.6851.9%+3.3%4
PantheonFilter
+0.6851.9%+3.2%4
GragasFilter
+0.6250.9%+2.8%5
HeimerdingerFilter
+0.6051.9%+2.9%4
CassiopeiaFilter
+0.6053.8%+4.7%2
KayleFilter
+0.4650.0%+2.2%6
TeemoFilter
+0.4350.9%+3.0%3
Vel'KozFilter
+0.4050.0%+4.2%2
MalphiteFilter
+0.3650.0%+1.7%8
GwenFilter
+0.3650.9%+2.5%3
RenektonFilter
+0.3351.9%+2.8%2
Cho'GathFilter
+0.3050.9%+2.1%3
RumbleFilter
+0.2550.9%+1.8%3
PoppyFilter
+0.2150.0%+2.4%2
QuinnFilter
+0.1850.0%+2.1%2
QiyanaFilter
+0.1850.0%+2.0%2
Master YiFilter
+0.1250.0%+1.5%2
JayceFilter
+0.0850.0%+1.0%10
OlafFilter
+0.0749.1%+1.3%5
DravenFilter
+0.0551.9%+0.2%2
AkaliFilter
+0.0350.0%+0.8%4
TryndamereFilter
-0.0349.1%+0.9%5
SylasFilter
-0.0549.1%+0.6%3
AnnieFilter
-0.0648.1%+0.5%2
KennenFilter
-0.0648.1%+0.5%2
VarusFilter
-0.1649.1%-0.1%3
MordekaiserFilter
-0.2150.0%+0.1%6
VladimirFilter
-0.3648.1%-0.4%4
ShyvanaFilter
-0.3749.1%-1.5%3
K'SanteFilter
-0.3849.1%-0.5%5
Xin ZhaoFilter
-0.4147.2%-1.1%3
Twisted FateFilter
-0.4447.2%-1.3%3
AatroxFilter
-0.5149.2%-0.0%9
YorickFilter
-0.5446.2%-3.4%2
GangplankFilter
-0.8347.4%-0.6%7
IreliaFilter
-0.8547.4%-0.7%7
SettFilter
-0.8546.3%-2.2%4
NasusFilter
-0.9546.3%-2.6%4
DariusFilter
-0.9548.4%-0.2%12
ShenFilter
-1.5146.8%-0.6%12
JaxFilter
-1.8845.6%-3.0%7
AmbessaFilter
-2.2544.6%-4.7%6
FioraFilter
-2.9343.9%-5.3%7
RivenFilter
-3.0445.0%-3.5%10
jungle
Karthus's WR vs enemy jungle. Sort ↓ for Karthus's easiest matchups, ↑ for hardest (strongest counters).
Matchup score from Karthus's perspective. Z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR), pooled across this opponent role. Positive = favorable matchup, negative = hard matchup (strong counter). Same shape as the item synergy / counter pick / duo rankings.Karthus's Bayesian-smoothed win rate against this opponent. (wins + 25) / (games + 50).Bidirectional matchup delta: avg of Karthus's gain over its baseline and the opponent's loss against its own. Positive = lopsided in Karthus's favor. Hover a row for the per-side breakdown.Number of games observed. More games = more reliable WR.
Jarvan IVFilter
+3.1555.7%+6.3%11
ShacoFilter
+2.4153.1%+4.4%14
RengarFilter
+1.4452.5%+3.5%11
ViegoFilter
+1.1251.4%+2.0%20
NaafiriFilter
+1.0551.6%+2.7%12
SkarnerFilter
+0.9352.7%+4.7%5
NidaleeFilter
+0.8151.8%+3.7%6
Rek'SaiFilter
+0.5851.9%+4.0%4
AmbessaFilter
+0.5251.6%+1.6%12
PantheonFilter
+0.5052.8%+4.2%3
WukongFilter
+0.4951.9%+3.4%4
KaynFilter
+0.3950.8%+1.6%11
HecarimFilter
+0.3151.9%+2.3%4
AmumuFilter
+0.2551.9%+3.5%2
ShyvanaFilter
+0.2251.9%+3.2%2
WarwickFilter
+0.2050.9%+2.4%3
LilliaFilter
+0.1350.0%+1.4%8
Bel'VethFilter
+0.1249.1%+2.0%5
RammusFilter
+0.0550.0%+1.8%2
EvelynnFilter
+0.0450.0%+1.7%2
FiddlesticksFilter
+0.0250.0%+1.5%2
ZyraFilter
-0.1149.1%+0.6%3
JayceFilter
-0.1450.0%-0.5%2
IvernFilter
-0.1748.1%-0.2%2
DianaFilter
-0.1849.1%-0.0%3
TaliyahFilter
-0.2048.1%-0.6%2
KindredFilter
-0.2149.1%+0.6%7
AatroxFilter
-0.2848.3%+0.7%8
SylasFilter
-0.3149.1%+0.2%7
ZedFilter
-0.3550.0%-1.0%4
EkkoFilter
-0.3849.1%-0.5%5
UdyrFilter
-0.5348.3%-0.0%8
GravesFilter
-0.6149.2%+0.1%13
ViFilter
-0.6348.2%-1.0%6
BriarFilter
-0.8645.3%-4.2%3
TalonFilter
-0.9148.5%+0.0%16
BrandFilter
-0.9148.2%-2.1%6
Xin ZhaoFilter
-0.9648.3%-0.9%10
Kha'ZixFilter
-1.4647.5%-1.5%11
NocturneFilter
-1.5444.6%-3.5%6
Master YiFilter
-1.6644.6%-3.9%6
Lee SinFilter
-2.3547.1%-1.5%18
mid
Karthus's WR vs enemy mid. Sort ↓ for Karthus's easiest matchups, ↑ for hardest (strongest counters).
Matchup score from Karthus's perspective. Z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR), pooled across this opponent role. Positive = favorable matchup, negative = hard matchup (strong counter). Same shape as the item synergy / counter pick / duo rankings.Karthus's Bayesian-smoothed win rate against this opponent. (wins + 25) / (games + 50).Bidirectional matchup delta: avg of Karthus's gain over its baseline and the opponent's loss against its own. Positive = lopsided in Karthus's favor. Hover a row for the per-side breakdown.Number of games observed. More games = more reliable WR.
AuroraFilter
+2.0953.3%+3.5%10
LuxFilter
+1.9753.4%+4.1%8
Twisted FateFilter
+1.7551.7%+3.4%10
YoneFilter
+1.2053.6%+2.9%6
LissandraFilter
+1.0651.8%+3.1%6
LeBlancFilter
+1.0552.7%+3.3%5
Xin ZhaoFilter
+0.7952.8%+3.9%3
AkshanFilter
+0.7352.8%+3.5%3
VladimirFilter
+0.7053.8%+4.8%2
TryndamereFilter
+0.6351.9%+4.7%2
Vel'KozFilter
+0.4851.9%+3.2%2
VexFilter
+0.4451.9%+2.8%2
KatarinaFilter
+0.3950.0%+1.4%6
SmolderFilter
+0.3952.8%+1.2%3
QiyanaFilter
+0.3850.9%+1.8%3
HweiFilter
+0.3650.9%+1.1%5
AniviaFilter
+0.3150.9%+1.4%3
GalioFilter
+0.3050.9%+1.3%3
ZoeFilter
+0.2850.0%+1.0%6
SionFilter
+0.2550.0%+1.6%2
DianaFilter
+0.2550.0%+1.6%2
NaafiriFilter
+0.2450.0%+1.1%4
TaliyahFilter
+0.1950.0%+1.0%2
PantheonFilter
+0.1948.1%+1.6%2
ZiggsFilter
+0.1850.9%+0.5%3
MalzaharFilter
+0.1550.0%+0.6%4
TalonFilter
+0.1450.0%+0.6%4
BrandFilter
+0.1450.0%+0.5%2
AkaliFilter
+0.0250.0%+0.3%8
YasuoFilter
-0.0150.0%-0.2%4
IreliaFilter
-0.0249.1%-0.2%3
CassiopeiaFilter
-0.0349.1%-0.3%3
EkkoFilter
-0.0649.1%+0.3%7
VeigarFilter
-0.0648.1%-0.8%2
SwainFilter
-0.0848.1%-1.0%2
JayceFilter
-0.1049.1%-0.1%5
AzirFilter
-0.1150.0%-0.7%4
RyzeFilter
-0.1250.0%-0.3%6
XerathFilter
-0.2149.2%+0.3%13
SingedFilter
-0.2147.2%-0.8%3
AnnieFilter
-0.3047.2%-1.4%3
KassadinFilter
-0.3449.1%-0.5%7
MelFilter
-0.5650.0%-1.8%6
TristanaFilter
-0.6747.2%-3.9%3
SyndraFilter
-0.7047.3%-1.9%5
ViktorFilter
-0.8548.3%-0.9%10
Aurelion SolFilter
-1.3445.5%-3.8%5
ZedFilter
-1.4447.5%-2.2%9
FizzFilter
-1.4946.7%-1.7%10
OriannaFilter
-2.1547.5%-2.9%11
SylasFilter
-2.8046.9%-2.8%14
AhriFilter
-3.4047.4%-1.5%28
adc
Karthus's WR vs enemy adc. Sort ↓ for Karthus's easiest matchups, ↑ for hardest (strongest counters).
Matchup score from Karthus's perspective. Z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR), pooled across this opponent role. Positive = favorable matchup, negative = hard matchup (strong counter). Same shape as the item synergy / counter pick / duo rankings.Karthus's Bayesian-smoothed win rate against this opponent. (wins + 25) / (games + 50).Bidirectional matchup delta: avg of Karthus's gain over its baseline and the opponent's loss against its own. Positive = lopsided in Karthus's favor. Hover a row for the per-side breakdown.Number of games observed. More games = more reliable WR.
EzrealFilter
+2.8556.0%+5.9%25
Kai'SaFilter
+2.5055.4%+5.5%24
AsheFilter
+2.4454.1%+5.8%24
BrandFilter
+0.9555.4%+8.5%6
CaitlynFilter
+0.4951.5%+2.3%18
VayneFilter
+0.3351.7%+2.7%10
ZeriFilter
+0.1950.8%+2.2%11
JinxFilter
+0.1350.0%+2.0%12
XerathFilter
+0.1351.9%+3.5%4
Kog'MawFilter
+0.0550.9%+3.5%3
TristanaFilter
+0.0350.9%+2.2%5
SennaFilter
+0.0050.0%+2.0%6
SmolderFilter
-0.0249.2%+1.6%13
CassiopeiaFilter
-0.0350.0%+3.1%2
ZiggsFilter
-0.0650.0%+2.3%2
YasuoFilter
-0.0749.1%+2.0%3
SyndraFilter
-0.0850.0%+1.9%2
VarusFilter
-0.1150.0%+1.0%6
Vel'KozFilter
-0.1348.1%+1.2%2
Aurelion SolFilter
-0.1548.1%+0.6%2
NilahFilter
-0.1649.1%+0.5%3
KalistaFilter
-0.1749.1%+0.3%3
LucianFilter
-0.1750.0%+0.7%20
VeigarFilter
-0.1748.1%+0.1%2
ApheliosFilter
-0.1850.0%+0.1%4
ZyraFilter
-0.1848.1%-0.2%2
XayahFilter
-0.2348.1%-0.0%4
MalzaharFilter
-0.2448.1%-1.6%2
MelFilter
-0.2448.1%-1.8%2
LuxFilter
-0.3446.3%-0.7%4
CorkiFilter
-0.4448.3%-0.7%8
DravenFilter
-0.4848.3%-0.5%10
TwitchFilter
-0.6346.6%-1.4%8
Miss FortuneFilter
-0.7047.5%-1.2%11
SivirFilter
-0.8146.6%-2.6%8
YunaraFilter
-1.0044.6%-5.1%6
JhinFilter
-3.3042.6%-6.8%18
support
Karthus's WR vs enemy support. Sort ↓ for Karthus's easiest matchups, ↑ for hardest (strongest counters).
Matchup score from Karthus's perspective. Z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR), pooled across this opponent role. Positive = favorable matchup, negative = hard matchup (strong counter). Same shape as the item synergy / counter pick / duo rankings.Karthus's Bayesian-smoothed win rate against this opponent. (wins + 25) / (games + 50).Bidirectional matchup delta: avg of Karthus's gain over its baseline and the opponent's loss against its own. Positive = lopsided in Karthus's favor. Hover a row for the per-side breakdown.Number of games observed. More games = more reliable WR.
ThreshFilter
+2.7254.0%+5.9%13
LuluFilter
+2.0552.1%+3.0%23
BlitzcrankFilter
+1.6153.4%+5.5%8
SonaFilter
+0.9651.7%+3.6%8
ZileanFilter
+0.6351.9%+4.3%4
JannaFilter
+0.6050.9%+2.8%7
ZoeFilter
+0.4652.8%+3.6%3
AlistarFilter
+0.4551.9%+3.0%4
TaricFilter
+0.3351.9%+3.9%2
ZyraFilter
+0.2750.9%+1.6%5
EliseFilter
+0.2650.9%+2.2%3
Tahm KenchFilter
+0.2550.9%+2.2%3
SennaFilter
+0.2249.2%+1.5%13
CamilleFilter
+0.2150.9%+1.8%3
PykeFilter
+0.1950.0%+1.4%6
NeekoFilter
+0.0950.0%+1.0%2
ShacoFilter
+0.0250.0%-0.1%2
SorakaFilter
-0.0149.2%+0.9%13
LeonaFilter
-0.0249.1%+0.6%5
BraumFilter
-0.0349.1%+0.6%7
BrandFilter
-0.0649.1%+0.3%5
AniviaFilter
-0.0748.1%-0.8%2
NautilusFilter
-0.2449.3%+0.5%17
AsheFilter
-0.2949.1%-2.6%3
NamiFilter
-0.3149.3%+0.5%23
XerathFilter
-0.3548.1%-1.8%4
PantheonFilter
-0.3647.2%-2.6%3
MilioFilter
-0.3848.3%-0.3%8
YuumiFilter
-0.4049.2%-0.5%9
RellFilter
-0.4547.7%+0.5%15
BardFilter
-1.0446.7%-1.5%10
RakanFilter
-1.0946.8%-1.1%12
LuxFilter
-1.2546.6%-3.1%8
KarmaFilter
-2.3847.3%-1.7%24
SeraphineFilter
-2.6045.7%-2.1%20
top
Karthus's WR when this ally plays top. Sort ↓ Score for best synergies, ↑ for worst.
Synergy score from Karthus's perspective. Per-result-set z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR). Positive = ally helps Karthus, negative = ally drags Karthus down. Same shape as the item synergy / counter pick / duo rankings + matchup tables.Karthus's Bayesian-smoothed win rate when paired with this ally.Bidirectional synergy delta: avg of Karthus's gain over their baseline and the ally's gain over theirs. High = both benefit from the pairing. Hover a row for the per-side breakdown.Number of games played together.
GarenFilter
218.253.2%+3.2%12
AkaliFilter
169.553.2%+4.6%7
GangplankFilter
157.152.3%+2.5%11
YoneFilter
153.752.3%+3.6%8
MalphiteFilter
132.952.1%+2.6%9
AatroxFilter
130.550.5%+1.9%14
FioraFilter
114.550.5%+1.9%12
TeemoFilter
85.651.6%+1.7%8
ZaahenFilter
79.652.1%+2.8%5
CamilleFilter
65.751.3%+1.8%6
Dr. MundoFilter
64.751.1%+1.9%6
VayneFilter
64.151.0%+1.9%6
IreliaFilter
63.050.6%+0.9%11
OrnnFilter
44.751.0%+0.9%7
OlafFilter
44.650.9%+0.9%7
AmbessaFilter
42.450.5%+2.0%4
RivenFilter
41.450.3%+1.0%7
ZacFilter
28.152.9%+1.9%2
NaafiriFilter
23.150.7%+2.0%2
UrgotFilter
22.851.3%+0.9%3
KennenFilter
22.351.2%+0.9%3
YasuoFilter
19.250.2%+1.0%3
GnarFilter
14.048.8%+0.3%12
AniviaFilter
11.850.3%-0.0%6
NasusFilter
11.649.1%+0.2%10
VarusFilter
7.248.8%+0.2%8
PantheonFilter
7.049.3%+0.1%6
RyzeFilter
6.050.6%-0.0%2
K'SanteFilter
5.848.5%+0.2%8
AzirFilter
5.750.5%-0.0%2
RumbleFilter
2.948.8%+0.1%4
HeimerdingerFilter
2.248.9%+0.0%2
KalistaFilter
1.948.8%+0.0%2
MaokaiFilter
0.548.2%+0.1%2
ZedFilter
-7.349.7%-1.0%3
Xin ZhaoFilter
-10.548.7%-0.9%3
SionFilter
-12.448.1%-0.9%3
KayleFilter
-15.549.1%-0.9%5
Twisted FateFilter
-17.847.5%-1.9%2
Master YiFilter
-17.947.5%-1.9%2
GwenFilter
-17.947.5%-1.9%2
SkarnerFilter
-18.547.2%-1.9%2
VolibearFilter
-19.748.2%-0.8%5
CassiopeiaFilter
-20.748.0%-0.8%5
IllaoiFilter
-24.848.4%-0.8%7
SettFilter
-28.448.6%-0.8%9
MordekaiserFilter
-30.247.3%-0.6%7
KledFilter
-30.848.7%-1.9%4
SingedFilter
-32.748.2%-1.9%4
GragasFilter
-41.346.9%-2.8%3
Tahm KenchFilter
-46.245.3%-2.7%3
TryndamereFilter
-66.247.0%-2.7%5
VladimirFilter
-67.846.6%-2.7%5
DariusFilter
-109.446.8%-2.4%9
JayceFilter
-127.846.6%-2.2%11
ShenFilter
-180.847.2%-3.3%12
YorickFilter
-272.144.9%-3.5%15
JaxFilter
-293.145.7%-3.5%17
RenektonFilter
-354.543.5%-5.3%13
jungle
Karthus's WR when this ally plays jungle. Sort ↓ Score for best synergies, ↑ for worst.
Synergy score from Karthus's perspective. Per-result-set z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR). Positive = ally helps Karthus, negative = ally drags Karthus down. Same shape as the item synergy / counter pick / duo rankings + matchup tables.Karthus's Bayesian-smoothed win rate when paired with this ally.Bidirectional synergy delta: avg of Karthus's gain over their baseline and the ally's gain over theirs. High = both benefit from the pairing. Hover a row for the per-side breakdown.Number of games played together.
RengarFilter
276.355.6%+6.4%14
Lee SinFilter
217.752.4%+2.8%26
Master YiFilter
188.253.5%+3.9%15
AmumuFilter
144.755.9%+6.2%7
TalonFilter
120.352.1%+2.4%15
ZedFilter
76.850.1%+3.0%9
Rek'SaiFilter
54.053.0%+2.7%5
EkkoFilter
41.250.5%+1.9%6
QuinnFilter
36.848.9%+2.1%6
FiddlesticksFilter
35.252.5%+2.9%3
KaynFilter
34.650.0%+1.0%9
SejuaniFilter
34.452.0%+2.9%3
HecarimFilter
27.749.7%+1.0%7
AatroxFilter
26.351.5%+0.9%5
SkarnerFilter
18.151.1%+0.9%3
RammusFilter
17.850.9%+0.9%3
GragasFilter
16.450.2%+1.0%3
WukongFilter
12.349.7%+0.0%8
ShacoFilter
11.649.5%+0.1%8
EvelynnFilter
11.149.9%+0.0%6
PantheonFilter
8.749.5%+0.0%4
NidaleeFilter
8.250.1%-0.0%2
UdyrFilter
7.849.9%+0.0%2
WarwickFilter
7.549.6%+0.0%2
QiyanaFilter
7.548.6%+0.2%6
Cho'GathFilter
7.049.2%+0.0%2
ZacFilter
6.548.9%+0.0%2
EliseFilter
6.248.7%+0.1%2
AmbessaFilter
5.748.2%+0.1%4
Dr. MundoFilter
5.548.1%+0.1%2
JayceFilter
5.047.8%+0.1%2
VolibearFilter
4.647.5%+0.1%2
Nunu & WillumpFilter
-3.848.4%-1.9%2
IvernFilter
-4.049.0%-0.9%5
GwenFilter
-4.747.7%-1.9%2
Kha'ZixFilter
-9.148.3%-0.8%7
LilliaFilter
-14.547.8%-1.8%4
Xin ZhaoFilter
-16.448.5%-0.5%17
OlafFilter
-21.745.3%-2.7%3
Bel'VethFilter
-26.749.2%-1.9%8
SylasFilter
-46.746.7%-2.5%7
NaafiriFilter
-55.048.0%-1.3%18
BriarFilter
-75.245.4%-3.3%8
ViegoFilter
-77.146.6%-2.1%13
KindredFilter
-87.546.3%-3.3%10
ShyvanaFilter
-138.644.5%-4.9%10
GravesFilter
-155.946.7%-2.3%26
NocturneFilter
-176.745.4%-4.7%14
ViFilter
-199.843.6%-5.3%13
Jarvan IVFilter
-368.343.0%-5.8%23
adc
Karthus's WR when this ally plays adc. Sort ↓ Score for best synergies, ↑ for worst.
Synergy score from Karthus's perspective. Per-result-set z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR). Positive = ally helps Karthus, negative = ally drags Karthus down. Same shape as the item synergy / counter pick / duo rankings + matchup tables.Karthus's Bayesian-smoothed win rate when paired with this ally.Bidirectional synergy delta: avg of Karthus's gain over their baseline and the ally's gain over theirs. High = both benefit from the pairing. Hover a row for the per-side breakdown.Number of games played together.
JhinFilter
197.051.0%+2.4%33
LucianFilter
174.152.9%+4.1%15
SmolderFilter
125.151.4%+1.0%34
YunaraFilter
65.250.2%+2.0%12
SennaFilter
58.451.6%+1.7%10
ZeriFilter
47.651.2%+1.8%8
SamiraFilter
47.151.0%+1.8%8
DravenFilter
36.450.1%+1.0%11
TristanaFilter
30.750.2%+1.0%9
JinxFilter
24.950.0%-0.0%26
BrandFilter
22.152.0%+0.8%5
KatarinaFilter
16.253.1%+1.9%2
Kog'MawFilter
13.651.5%+0.9%3
NilahFilter
11.950.4%+1.0%3
SivirFilter
11.949.0%+0.2%12
KalistaFilter
7.949.4%+0.1%8
TwitchFilter
7.650.1%-0.0%6
VayneFilter
7.649.2%+0.1%8
LuxFilter
4.450.9%-0.0%2
XerathFilter
2.949.6%+0.0%2
CaitlynFilter
-0.348.7%-0.1%35
YasuoFilter
-2.550.0%-1.0%3
SyndraFilter
-4.049.0%-0.9%3
HeimerdingerFilter
-6.049.9%-2.0%2
XayahFilter
-7.148.9%-0.9%5
SeraphineFilter
-14.848.9%-1.9%4
ZiggsFilter
-15.848.4%-1.9%4
AsheFilter
-16.149.3%-0.5%31
SwainFilter
-31.848.0%-2.8%5
ApheliosFilter
-73.444.9%-3.2%8
EzrealFilter
-89.846.5%-1.4%23
Miss FortuneFilter
-99.445.1%-4.1%9
VarusFilter
-115.745.1%-3.9%11
Kai'SaFilter
-436.141.4%-6.7%25
support
Karthus's WR when this ally plays support. Sort ↓ Score for best synergies, ↑ for worst.
Synergy score from Karthus's perspective. Per-result-set z-score (mean 0, SD 1) of the weighted composite 0.70·z(delta) + 0.20·z(games) + 0.10·z(WR). Positive = ally helps Karthus, negative = ally drags Karthus down. Same shape as the item synergy / counter pick / duo rankings + matchup tables.Karthus's Bayesian-smoothed win rate when paired with this ally.Bidirectional synergy delta: avg of Karthus's gain over their baseline and the ally's gain over theirs. High = both benefit from the pairing. Hover a row for the per-side breakdown.Number of games played together.
NamiFilter
413.254.3%+5.2%32
KarmaFilter
138.051.3%+2.4%23
BraumFilter
137.054.6%+5.1%10
NautilusFilter
130.250.7%+1.5%34
BardFilter
116.952.0%+2.2%19
LuluFilter
78.250.6%+1.8%18
SorakaFilter
53.151.3%+1.7%12
MorganaFilter
45.051.7%+2.8%7
PykeFilter
34.450.3%+0.9%15
SennaFilter
24.651.0%+0.8%11
SonaFilter
24.051.6%+1.8%6
Tahm KenchFilter
11.551.1%+1.9%4
ZyraFilter
2.949.7%+1.0%5
ZileanFilter
-0.951.3%+0.9%3
TaricFilter
-1.650.9%+0.9%3
BlitzcrankFilter
-2.050.0%+0.0%10
MelFilter
-3.946.8%+1.3%5
IvernFilter
-9.651.0%-0.0%2
SylasFilter
-13.048.3%+0.1%2
SwainFilter
-13.148.1%+0.1%2
MaokaiFilter
-18.548.8%-0.9%3
NidaleeFilter
-22.646.3%-0.8%3
NeekoFilter
-22.948.1%-0.8%5
AniviaFilter
-23.347.2%-1.9%2
PantheonFilter
-24.447.4%-0.7%5
ZacFilter
-24.646.1%-1.8%2
AlistarFilter
-26.548.4%-0.7%9
YuumiFilter
-28.547.9%-0.4%15
Vel'KozFilter
-30.547.9%-1.8%4
BrandFilter
-31.747.4%-1.8%4
PoppyFilter
-35.446.7%-2.8%3
RellFilter
-41.448.9%-1.8%8
RakanFilter
-48.448.4%-1.7%10
XerathFilter
-51.045.5%-2.5%5
LuxFilter
-54.844.7%-3.6%4
LeonaFilter
-57.948.0%-1.4%14
JannaFilter
-67.747.4%-2.5%9
MilioFilter
-143.244.5%-4.9%10
SeraphineFilter
-149.847.3%-2.8%22
ThreshFilter
-261.745.0%-4.9%21
Shadowflame
29% PR · 101 games
45.7%

Bait items

Bought regularly but dragging the win rate down. Reconsider these.

Shadowflame
Shadowflame
29% PR · 101 games
45.7%
Blackfire Torch
Blackfire Torch
42% PR · 144 games
47.9%
Zhonya's Hourglass
Zhonya's Hourglass
11% PR · 37 games
49.4%
Liandry's Torment
Liandry's Torment
19% PR · 66 games
50.9%
Rabadon's Deathcap
Rabadon's Deathcap
14% PR · 47 games
54.6%
Win RateⓘBayesian-smoothed: (wins + 25) / (games + 50). Reliable even with small samples.
47.8%↓Low compared to other champions in this role
Pick Rate
0.2%↓Low compared to other champions in this role
Ban Rate
3.5%·Average compared to other champions in this role

Presence by Rank

Pick / ban / P+B rates across the ladder. Rank-agnostic — the rank filter is ignored here.

Rune Pages

Domination · Sorcery
11% PR · 49.5% WR
DominationDark HarvestCheap ShotGrisly MementosUltimate Hunter
SorceryAxiom ArcanistGathering Storm
Adaptive ForceAdaptive ForceScaling Health
Sorcery · Precision
8% PR · 49.4% WR
SorceryDeathfire TouchAxiom ArcanistTranscendenceScorch
PrecisionPresence of MindLast Stand
Adaptive ForceAdaptive Force
Sorcery · Precision
5% PR · 49.3% WR
SorceryDeathfire TouchAxiom ArcanistTranscendenceScorch
PrecisionCoup de GracePresence of Mind
Adaptive ForceAdaptive Force

Summoner Spells

ExhaustFlash
Exhaust + Flash
58% PR · 49.1% WR
FlashTeleport
Flash + Teleport
20% PR · 50.0% WR
ExhaustIgnite
Exhaust + Ignite
9% PR · 45.3% WR
FlashIgnite
Flash + Ignite
7% PR · 46.8% WR
ScalingⓘWR slope vs game length. Positive = scales well late, negative = falls off. Practical bounds: ±0.03
0.001
Rank BiasⓘWR slope vs rank. Positive = better in high elo, negative = better in low elo. Practical bounds: ±0.036
-0.003
Worst MatchupⓘWorst lane matchup WR minus this champion's own baseline WR, both Bayesian-smoothed. Tail complement to Matchup Spread — captures champions punished by a small number of extremely spiky lanes that MAD averages out. Closer to 0 = no truly bad lanes (safer blind pick). Min 30 games per opponent, ≥5 well-sampled opponents.
—
Best MatchupⓘBest lane matchup WR minus this champion's own baseline WR, both Bayesian-smoothed. Higher = stronger counter-pick power against the right opponent. Min 30 games per opponent, ≥5 well-sampled opponents.
—

Win Rate by Game Length

Slope: 0.001

Win Rate by Rank

Slope: -0.003

Win Rate Distribution

52 opponents
Q1: 48.3%Median: 50.0%Q3: 51.1%IQR: 2.9%
Health
Health
↓Low compared to other champions in this role
·Average compared to other champions in this role
Runes
Domination · Sorcery
11% PR · 49.5% WR
DominationDark HarvestCheap ShotGrisly MementosUltimate Hunter
SorceryAxiom ArcanistGathering Storm
Adaptive ForceAdaptive ForceScaling Health
Summoners
ExhaustFlash
Exhaust + Flash
58% PR · 49.1% WR
Items
Starting items
Doran's Ring
Doran's Ring
92% PR · 48.2% WR
Core build
Item 1
Blackfire Torch
Blackfire Torch
70% PR · 49.9% WR
Malignance
Malignance
22% PR · 48.6% WR
Item 2
Skill order
123456789101112131415161718
Q
Shadowflame
Shadowflame
42% PR · 49.3% WR
Liandry's Torment
Liandry's Torment
35% PR · 51.7% WR
Zhonya's Hourglass
Zhonya's Hourglass
6% PR · 47.9% WR
Item 3
Rabadon's Deathcap
Rabadon's Deathcap
31% PR · 52.9% WR
Shadowflame
Shadowflame
24% PR · 48.7% WR
Zhonya's Hourglass
Zhonya's Hourglass
12% PR · 51.8% WR
Item 4
Rabadon's Deathcap
Rabadon's Deathcap
22% PR · 52.4% WR
Void Staff
Void Staff
19% PR · 52.6% WR
Zhonya's Hourglass
Zhonya's Hourglass
17% PR · 52.0% WR
Lay Waste
1
3
5
7
9
WWall of Pain
4
14
15
17
18
EDefile
2
8
10
12
13
RRequiem
6
11
16
31.6% PR · 53.2% WR · 12 games
123456789101112131415161718
QLay Waste
1
3
5
7
9
WWall of Pain
4
EDefile
2
8
10
RRequiem
6
11
31.6% PR · 53.2% WR · 12 games
123456789101112131415161718
Q
123456789101112131415161718
Q
14
15
17
18
12
13
16
Lay Waste
1
4
5
7
9
WWall of Pain
3
14
15
17
18
EDefile
2
8
10
12
13
RRequiem
6
11
16
23.7% PR · 52.5% WR · 9 games
Lay Waste
1
3
5
7
9
WWall of Pain
8
14
15
17
18
EDefile
2
4
10
12
13
RRequiem
6
11
16
13.2% PR · 52.7% WR · 5 games