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.
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.
How Karthus's per-minute damage, CC, and heal/shield output compare to other champions in this role. Bars show z-score (0 = role average, ±1 = one stddev). Bayesian-shrunk by games played; pooled across ranks.
Damage dealt to champions
AP damage1076 /min+3.36σ
AD damage9 /min-1.73σ
True damage99 /min+0.52σ
Damage taken from champions
AP taken339 /min-0.28σ
AD taken594 /min-0.68σ
True taken61 /min-0.24σ
Utility
Hard CC dealt0.68 sec/min-0.37σ
Heal0 /min-0.20σ
Shield0 /min-0.17σ
C
Tier
Below average — viable but weakerRating 34.60
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
Scorchclaw Pup
80% PR · 50.6% WR
Gustwalker Hatchling
19% PR · 44.4% WR
Mosstomper Seedling
1% PR · 43.8% WR
Tier 2 Boots
Sorcerer's Shoes
98% PR · 50.0% WR
Best items on Karthus
Highest smoothed win rate among items bought in ≥3% of games.
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.
JayceFilter
+4.1259.5%+8.3%113
VayneFilter
+1.5455.1%+4.4%68
ZaahenFilter
+1.5357.0%+6.1%43
KayleFilter
+1.1356.1%+6.0%32
DariusFilter
+1.1354.2%+3.1%70
GnarFilter
+0.9654.2%+2.5%70
FioraFilter
+0.9354.3%+3.0%55
AmbessaFilter
+0.8553.6%+2.2%75
SingedFilter
+0.7654.3%+4.3%31
AatroxFilter
+0.6652.9%+1.5%86
RumbleFilter
+0.6453.5%+2.3%49
VarusFilter
+0.5754.3%+3.0%31
K'SanteFilter
+0.5552.8%+1.1%92
MalphiteFilter
+0.4851.8%+1.3%87
MordekaiserFilter
+0.3753.2%+0.9%61
Tahm KenchFilter
+0.2754.5%+2.6%16
IreliaFilter
+0.2551.3%+0.9%67
RenektonFilter
+0.1651.7%+0.4%70
PantheonFilter
+0.1352.0%+1.1%25
NasusFilter
+0.1251.9%+0.9%27
Cho'GathFilter
+0.1052.1%+0.9%23
GragasFilter
+0.1051.4%+1.1%24
PoppyFilter
+0.0951.6%+1.8%14
UrgotFilter
+0.0950.6%+1.0%29
OlafFilter
+0.0450.6%+0.6%35
ShenFilter
-0.0450.0%+0.3%34
AniviaFilter
-0.0850.0%+0.1%32
WukongFilter
-0.0950.0%-0.1%18
SettFilter
-0.1350.6%-0.4%39
AuroraFilter
-0.1350.0%-0.7%16
GangplankFilter
-0.1550.0%-0.2%58
VolibearFilter
-0.1950.6%-0.8%37
KennenFilter
-0.3248.8%-1.2%30
JaxFilter
-0.3550.0%-0.8%74
KledFilter
-0.3648.0%-1.6%25
IllaoiFilter
-0.4447.8%-3.0%19
SylasFilter
-0.4446.9%-3.9%14
CamilleFilter
-0.4648.8%-1.8%36
VladimirFilter
-0.5248.0%-2.8%25
TeemoFilter
-0.5448.3%-1.9%39
TryndamereFilter
-0.5648.3%-2.1%37
OrnnFilter
-0.5848.6%-1.5%59
AkaliFilter
-0.7048.9%-2.7%44
YoneFilter
-0.9048.7%-2.6%63
GwenFilter
-0.9446.4%-4.1%34
YorickFilter
-1.1647.4%-4.4%45
SionFilter
-1.2548.2%-2.9%89
YasuoFilter
-1.6243.4%-7.6%33
GarenFilter
-1.7246.4%-3.8%88
Dr. MundoFilter
-1.9143.6%-7.1%44
RivenFilter
-2.0044.1%-6.5%52
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
+2.4357.0%+5.6%101
GravesFilter
+2.3254.8%+3.7%200
Lee SinFilter
+2.1354.0%+3.6%198
TalonFilter
+1.6154.5%+4.0%95
PantheonFilter
+1.1756.2%+5.6%39
Nunu & WillumpFilter
+1.1257.0%+7.0%29
NocturneFilter
+0.8952.5%+2.4%91
Bel'VethFilter
+0.8554.2%+5.1%33
NidaleeFilter
+0.8353.5%+3.5%49
SylasFilter
+0.8353.6%+2.7%62
AmbessaFilter
+0.6753.5%+1.5%79
ZyraFilter
+0.6253.2%+2.8%44
JaxFilter
+0.4455.2%+4.6%17
RammusFilter
+0.4253.3%+3.2%25
RengarFilter
+0.3852.2%+1.2%63
AatroxFilter
+0.3552.9%+3.6%20
FizzFilter
+0.3254.7%+4.2%14
LilliaFilter
+0.2551.5%+1.2%49
EkkoFilter
+0.1752.0%+0.6%48
WarwickFilter
+0.0951.3%+0.9%26
Master YiFilter
+0.0550.7%+0.2%86
TaliyahFilter
+0.0451.4%+0.7%20
ViFilter
-0.0151.0%-0.1%48
Rek'SaiFilter
-0.1549.5%-0.3%41
SkarnerFilter
-0.1649.3%-0.6%25
UdyrFilter
-0.2049.3%-1.1%23
FiddlesticksFilter
-0.2349.4%-1.0%33
ShacoFilter
-0.3549.6%-1.0%67
Dr. MundoFilter
-0.3848.5%-3.3%18
DianaFilter
-0.4248.8%-2.3%30
ViegoFilter
-0.4450.3%-1.1%127
QiyanaFilter
-0.4547.8%-3.7%19
ZacFilter
-0.4648.8%-2.6%30
ZedFilter
-0.5050.0%-2.9%36
KindredFilter
-0.5648.5%-2.0%51
JayceFilter
-0.5747.9%-4.5%21
WukongFilter
-0.6646.8%-3.6%29
EvelynnFilter
-0.7846.3%-4.0%32
HecarimFilter
-0.8048.6%-2.8%61
IvernFilter
-0.8244.4%-5.7%22
BriarFilter
-0.9947.5%-3.8%51
Xin ZhaoFilter
-1.0448.1%-3.0%79
ShyvanaFilter
-1.0946.4%-4.3%47
KaynFilter
-1.1547.4%-3.7%64
NaafiriFilter
-1.5946.7%-4.2%87
EliseFilter
-1.8542.7%-8.6%39
Kha'ZixFilter
-2.3244.6%-6.5%80
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.
YoneFilter
+2.6760.0%+7.8%70
ViktorFilter
+1.8555.1%+4.2%108
KassadinFilter
+1.4958.6%+7.2%37
ZoeFilter
+1.0653.9%+3.4%65
RyzeFilter
+1.0254.5%+2.7%71
LeBlancFilter
+0.9754.3%+3.5%55
LuxFilter
+0.9554.8%+4.1%43
OriannaFilter
+0.9254.5%+2.4%71
AkshanFilter
+0.8054.2%+3.2%46
CassiopeiaFilter
+0.6955.3%+4.6%26
TaliyahFilter
+0.6856.5%+6.1%19
XerathFilter
+0.5151.9%+1.4%79
Twisted FateFilter
+0.4451.2%+1.4%75
FizzFilter
+0.4051.5%+1.7%51
MalphiteFilter
+0.3053.8%+3.3%15
MelFilter
+0.2553.9%+0.4%39
VexFilter
+0.2451.7%+1.1%39
DianaFilter
+0.2251.2%+1.3%36
IreliaFilter
+0.1652.2%+1.4%19
KatarinaFilter
+0.1150.3%+0.3%93
HweiFilter
+0.1051.4%+0.1%61
AniviaFilter
+0.0751.1%+0.2%38
VeigarFilter
+0.0550.6%+0.3%33
ZedFilter
+0.0351.0%-0.2%95
AuroraFilter
+0.0251.2%-0.2%75
SyndraFilter
-0.0250.5%-0.2%49
EkkoFilter
-0.1649.4%-1.0%29
SmolderFilter
-0.2050.0%-2.7%14
AzirFilter
-0.2050.6%-1.8%27
JayceFilter
-0.2048.4%-2.3%14
YasuoFilter
-0.2251.0%-1.0%105
SionFilter
-0.2347.7%-2.3%15
GalioFilter
-0.2750.0%-1.2%60
AkaliFilter
-0.3750.0%-1.2%90
MalzaharFilter
-0.6448.8%-2.1%71
LissandraFilter
-0.7147.7%-2.5%59
BrandFilter
-0.7842.2%-9.2%14
NaafiriFilter
-0.7946.5%-4.1%36
TalonFilter
-0.9046.7%-4.4%40
QiyanaFilter
-1.0346.5%-4.2%49
SylasFilter
-1.0548.2%-3.0%89
AnnieFilter
-1.6044.1%-6.1%52
Aurelion SolFilter
-1.7941.0%-9.9%33
AhriFilter
-1.8646.4%-4.0%133
VladimirFilter
-3.0141.0%-9.8%67
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.
JhinFilter
+2.6857.0%+5.5%194
AsheFilter
+2.5456.6%+6.2%148
TwitchFilter
+1.2356.6%+6.4%49
SennaFilter
+0.9854.5%+4.5%62
JinxFilter
+0.9552.8%+2.9%128
SivirFilter
+0.9054.5%+3.2%82
SwainFilter
+0.5956.3%+7.0%21
SamiraFilter
+0.4453.2%+2.2%61
Aurelion SolFilter
+0.3655.2%+5.7%17
TristanaFilter
+0.3252.3%+1.4%82
DravenFilter
+0.2052.1%+1.1%71
Miss FortuneFilter
+0.1952.1%+1.1%71
Kai'SaFilter
+0.0852.3%+0.1%172
ApheliosFilter
+0.0752.4%+0.4%74
SmolderFilter
-0.0950.2%+0.3%195
Vel'KozFilter
-0.1449.3%+0.3%19
KalistaFilter
-0.1550.6%-0.2%31
VarusFilter
-0.1551.1%-0.2%85
MelFilter
-0.1751.3%-0.7%26
YunaraFilter
-0.2651.3%-0.6%108
EzrealFilter
-0.3451.5%-0.7%284
Kog'MawFilter
-0.3446.9%-2.6%14
YasuoFilter
-0.3747.2%-1.7%22
HweiFilter
-0.4246.9%-3.9%14
NilahFilter
-0.5046.3%-4.1%17
VayneFilter
-0.5549.0%-1.9%52
SeraphineFilter
-0.5743.8%-5.5%14
ZiggsFilter
-0.5846.8%-3.2%27
CorkiFilter
-0.5949.0%-2.4%46
XayahFilter
-0.7247.2%-3.2%39
CaitlynFilter
-1.6447.9%-3.4%165
ZeriFilter
-1.8343.0%-7.7%50
LucianFilter
-2.1346.4%-5.1%129
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.
LeonaFilter
+2.4655.5%+4.9%96
BlitzcrankFilter
+1.8455.9%+5.5%52
PykeFilter
+1.4654.0%+3.0%89
AlistarFilter
+1.0954.1%+2.9%59
LuxFilter
+0.8754.2%+2.2%57
BardFilter
+0.7751.9%+1.5%139
Tahm KenchFilter
+0.7656.7%+5.5%17
NeekoFilter
+0.7354.3%+3.2%31
MorganaFilter
+0.7253.8%+2.4%43
SorakaFilter
+0.6752.1%+1.6%92
SeraphineFilter
+0.6151.6%+1.4%111
ThreshFilter
+0.5551.5%+1.1%156
JannaFilter
+0.4952.0%+1.7%52
ShacoFilter
+0.4754.8%+2.4%23
MelFilter
+0.4757.6%+2.8%16
RellFilter
+0.3750.9%+1.5%62
PoppyFilter
+0.3452.8%+2.1%22
EliseFilter
+0.2852.4%+1.2%34
PantheonFilter
+0.2552.6%+0.7%45
RakanFilter
+0.1751.0%+0.9%46
TaricFilter
+0.1251.3%+0.8%28
XerathFilter
+0.1052.6%+0.3%26
ZyraFilter
+0.0551.9%+0.2%31
SwainFilter
-0.2750.6%-1.4%27
AniviaFilter
-0.4049.4%-1.7%29
NautilusFilter
-0.4650.5%-0.5%152
SonaFilter
-0.6349.1%-1.4%56
Vel'KozFilter
-0.6947.4%-3.2%26
CamilleFilter
-0.7047.1%-4.3%20
SennaFilter
-0.7248.9%-1.1%81
BrandFilter
-0.7648.3%-2.7%37
BraumFilter
-0.8049.1%-1.7%66
MaokaiFilter
-0.9445.1%-5.4%21
ZileanFilter
-1.0245.5%-4.5%27
LuluFilter
-1.1449.7%-1.6%149
KarmaFilter
-1.2749.8%-1.6%185
MilioFilter
-1.6946.9%-4.0%63
NamiFilter
-1.7148.9%-2.1%179
YuumiFilter
-2.4146.3%-5.5%71
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.
ShenFilter
274.560.2%+9.0%74
CamilleFilter
148.656.2%+6.0%57
K'SanteFilter
140.453.4%+4.2%101
MalphiteFilter
137.454.4%+4.2%88
RenektonFilter
119.753.0%+3.4%110
KledFilter
108.857.2%+6.0%35
VayneFilter
91.153.1%+3.0%80
Cho'GathFilter
87.756.6%+6.8%24
NasusFilter
84.754.5%+4.6%38
SingedFilter
83.854.7%+3.9%44
TrundleFilter
80.154.2%+5.5%30
RivenFilter
79.152.9%+2.7%75
YasuoFilter
77.553.6%+3.7%45
IreliaFilter
62.852.5%+2.0%82
OlafFilter
62.153.2%+2.4%56
VladimirFilter
42.553.5%+3.5%21
Xin ZhaoFilter
29.352.1%+1.8%29
VolibearFilter
29.151.7%+2.2%25
MordekaiserFilter
28.850.3%+1.7%46
YorickFilter
28.750.5%+1.4%60
GarenFilter
20.751.2%+0.6%97
GragasFilter
19.351.7%+1.1%26
Tahm KenchFilter
14.150.0%+1.0%35
RumbleFilter
11.150.4%+0.8%19
GwenFilter
10.950.9%+0.6%19
PoppyFilter
10.551.4%+0.4%21
KayleFilter
10.051.1%+0.4%29
QuinnFilter
1.750.7%-0.3%24
IllaoiFilter
-0.850.0%-0.0%48
Dr. MundoFilter
-1.450.1%-0.1%48
YoneFilter
-10.949.6%+0.0%115
JayceFilter
-11.949.6%-0.0%123
WarwickFilter
-20.648.2%-2.2%21
AkaliFilter
-26.547.7%-1.5%33
VarusFilter
-28.848.0%-1.5%37
PantheonFilter
-45.447.9%-2.0%48
JaxFilter
-66.848.3%-1.7%97
AmbessaFilter
-69.847.7%-1.7%96
GnarFilter
-80.046.9%-2.3%77
OrnnFilter
-86.548.0%-2.7%82
DariusFilter
-87.647.6%-2.2%99
GangplankFilter
-100.747.8%-2.8%97
TeemoFilter
-109.045.9%-4.7%53
AatroxFilter
-115.046.9%-2.5%122
FioraFilter
-116.445.2%-4.4%58
TryndamereFilter
-120.045.4%-5.0%54
ZaahenFilter
-155.144.0%-6.0%59
UrgotFilter
-159.244.3%-7.0%53
SionFilter
-228.244.4%-5.4%121
SettFilter
-254.441.0%-8.9%67
mid
Karthus's WR when this ally plays mid. 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.
IreliaFilter
211.956.3%+6.2%85
NaafiriFilter
197.656.1%+5.8%84
Twisted FateFilter
186.857.3%+6.1%68
ZedFilter
155.952.2%+2.5%281
AkshanFilter
147.353.2%+3.2%136
FizzFilter
129.957.0%+5.9%44
PantheonFilter
112.559.0%+6.3%32
GalioFilter
109.354.2%+4.5%53
Xin ZhaoFilter
63.954.9%+4.4%27
AnnieFilter
61.553.9%+3.2%36
Vel'KozFilter
49.055.5%+5.1%17
KatarinaFilter
41.551.8%+0.9%88
QiyanaFilter
38.051.0%+0.8%109
SyndraFilter
35.351.6%+1.4%49
LissandraFilter
32.751.8%+1.1%53
QuinnFilter
30.653.6%+2.5%20
MalzaharFilter
28.250.8%+0.8%74
TalonFilter
20.050.3%+0.5%97
TryndamereFilter
14.652.9%+0.8%20
Aurelion SolFilter
11.350.6%+0.6%33
AzirFilter
10.649.6%+1.2%23
CassiopeiaFilter
9.250.9%+0.6%25
AuroraFilter
3.449.7%+0.2%36
JayceFilter
2.150.1%-0.1%72
BrandFilter
1.049.7%+0.1%22
VexFilter
0.550.2%-0.2%38
XerathFilter
0.250.2%-0.2%56
GarenFilter
-0.250.7%-0.3%20
NasusFilter
-7.849.4%-0.7%23
VeigarFilter
-9.949.8%-0.9%31
DianaFilter
-10.950.0%-1.0%31
TristanaFilter
-14.047.3%-0.8%22
OriannaFilter
-15.147.9%-0.8%30
RyzeFilter
-15.648.5%-0.7%44
TaliyahFilter
-16.248.9%-1.5%22
AkaliFilter
-18.548.8%-0.9%48
ZoeFilter
-19.949.0%-1.4%34
SylasFilter
-28.748.7%-1.0%79
AniviaFilter
-30.648.4%-1.6%41
SmolderFilter
-37.945.2%-3.0%21
AhriFilter
-51.448.9%-1.6%110
RivenFilter
-54.246.7%-4.3%26
MalphiteFilter
-61.045.6%-4.8%25
LuxFilter
-63.546.8%-3.4%40
EkkoFilter
-70.247.3%-3.3%50
YoneFilter
-73.947.5%-1.3%191
VladimirFilter
-74.446.2%-3.9%41
KassadinFilter
-80.742.7%-6.8%22
LeBlancFilter
-83.045.5%-4.6%38
MelFilter
-83.143.3%-4.1%37
HweiFilter
-86.745.8%-3.9%48
SionFilter
-91.046.2%-4.7%44
ViktorFilter
-143.945.7%-4.3%90
YasuoFilter
-462.739.4%-9.6%162
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.
AsheFilter
220.356.0%+5.4%256
SamiraFilter
130.555.7%+5.8%81
TristanaFilter
103.754.9%+4.9%72
SmolderFilter
93.953.1%+2.1%294
XayahFilter
80.955.3%+4.7%50
ZeriFilter
77.353.6%+3.4%79
SennaFilter
68.753.5%+2.5%93
VarusFilter
57.151.9%+2.3%96
Miss FortuneFilter
53.952.1%+2.2%92
JhinFilter
50.750.8%+1.4%276
ZiggsFilter
48.156.4%+5.4%20
ApheliosFilter
21.949.9%+1.1%91
Kog'MawFilter
15.952.5%+1.0%20
YasuoFilter
15.752.9%+0.9%20
DravenFilter
10.850.3%+0.4%97
KalistaFilter
4.950.1%-0.0%30
NilahFilter
-1.549.7%-0.8%27
CorkiFilter
-31.147.0%-2.6%39
YunaraFilter
-45.147.5%-1.5%111
VayneFilter
-48.547.7%-2.3%82
CaitlynFilter
-50.148.5%-1.1%261
TwitchFilter
-70.847.1%-3.7%74
JinxFilter
-133.846.6%-4.3%159
EzrealFilter
-139.845.8%-2.8%326
SivirFilter
-171.641.5%-8.0%77
LucianFilter
-172.744.5%-4.9%174
Kai'SaFilter
-189.343.2%-5.5%159
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.
Win RateⓘBayesian-smoothed: (wins + 25) / (games + 50). Reliable even with small samples.
48.9%↓Low compared to other champions in this role
Pick Rate
2.3%·Average compared to other champions in this role
Ban Rate
3.4%·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
23% PR · 45.1% WR
Domination · Precision
9% PR · 48.9% WR
Inspiration · Sorcery
5% PR · 46.9% WR
Summoner Spells
Flash + Smite
50% PR · 50.0% WR
Exhaust + Smite
44% PR · 48.5% WR
Smite + Ignite
6% PR · 49.8% WR
ScalingⓘWR slope vs game length. Positive = scales well late, negative = falls off. Practical bounds: ±0.03
0.000
Rank BiasⓘWR slope vs rank. Positive = better in high elo, negative = better in low elo. Practical bounds: ±0.036
-0.002
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.
-12.6%
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.
Mage
