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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
91% PR · 49.3% 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 · 50.3% WR
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Q

Best items on Karthus

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

Rabadon's Deathcap
Rabadon's Deathcap
13% PR · 49 games
53.5%
Zhonya's Hourglass
Zhonya's Hourglass
8% PR · 31 games
50.6%
Liandry's Torment
Liandry's Torment
15% PR · 57 games
50.5%
Blackfire Torch
Blackfire Torch
34% PR · 132 games
48.9%
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
+4.0355.6%+5.9%13
GarenFilter
+1.1251.7%+3.0%8
JayceFilter
+0.9451.7%+1.9%10
OrnnFilter
+0.9251.8%+3.2%6
SionFilter
+0.8951.7%+2.3%8
CamilleFilter
+0.8051.8%+2.7%6
VayneFilter
+0.7650.8%+1.6%11
UrgotFilter
+0.6952.8%+4.5%3
KayleFilter
+0.6750.9%+2.2%7
Dr. MundoFilter
+0.6352.8%+4.0%3
VolibearFilter
+0.6151.8%+2.0%6
PantheonFilter
+0.5351.9%+2.6%4
ZaahenFilter
+0.5351.9%+2.6%4
CassiopeiaFilter
+0.4953.8%+4.4%2
GragasFilter
+0.4950.9%+2.2%5
TeemoFilter
+0.3350.9%+2.3%3
ShenFilter
+0.3249.2%+1.2%11
GangplankFilter
+0.3050.0%+1.4%6
Master YiFilter
+0.2850.9%+2.0%3
GnarFilter
+0.2750.9%+0.8%7
GwenFilter
+0.2650.9%+1.8%3
Cho'GathFilter
+0.2650.9%+1.8%3
RumbleFilter
+0.2150.9%+1.4%3
OlafFilter
+0.1850.0%+1.2%4
VarusFilter
+0.1150.0%+0.8%4
SylasFilter
+0.0950.0%+1.1%2
YasuoFilter
+0.0750.0%+0.4%8
HeimerdingerFilter
+0.0350.0%+0.4%4
AnnieFilter
+0.0249.1%+0.6%3
DravenFilter
+0.0151.9%-0.5%2
QiyanaFilter
-0.0149.1%+0.4%3
KennenFilter
-0.0349.1%+0.2%3
NaafiriFilter
-0.0650.0%-0.6%2
TrundleFilter
-0.0650.0%-0.7%2
AkaliFilter
-0.1049.1%-0.3%3
VladimirFilter
-0.1349.1%-0.6%3
Twisted FateFilter
-0.1948.1%-1.4%2
ShyvanaFilter
-0.1950.0%-2.1%2
TryndamereFilter
-0.2848.1%-0.8%4
NasusFilter
-0.2848.1%-0.8%4
Xin ZhaoFilter
-0.3947.2%-1.9%3
YorickFilter
-0.4346.2%-3.5%2
MordekaiserFilter
-0.5149.1%-1.2%7
K'SanteFilter
-0.5147.2%-2.8%3
MalphiteFilter
-0.5548.3%-0.5%10
IreliaFilter
-0.7647.4%-1.4%7
SettFilter
-0.7947.4%-1.6%7
DariusFilter
-0.8948.4%-1.0%12
AatroxFilter
-1.3947.5%-2.0%11
AmbessaFilter
-1.8244.6%-5.1%6
FioraFilter
-2.3043.9%-5.4%7
RivenFilter
-2.4445.0%-3.9%10
JaxFilter
-2.7244.1%-5.0%9
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.
ViegoFilter
+2.0952.9%+3.1%20
Jarvan IVFilter
+2.0554.0%+4.2%13
ShacoFilter
+1.9853.1%+4.0%14
GravesFilter
+1.8252.1%+2.6%23
RengarFilter
+1.3553.3%+3.6%10
SkarnerFilter
+0.6352.7%+3.5%5
HecarimFilter
+0.6053.7%+3.9%4
WukongFilter
+0.4052.8%+3.7%3
NaafiriFilter
+0.3850.8%+1.5%11
ShyvanaFilter
+0.3652.8%+3.3%3
Bel'VethFilter
+0.1750.0%+2.0%4
PantheonFilter
+0.1651.9%+2.7%2
Rek'SaiFilter
+0.1650.0%+2.0%4
DianaFilter
+0.1650.9%+1.4%5
AmumuFilter
+0.1551.9%+2.5%2
NidaleeFilter
+0.0850.0%+1.2%6
JaxFilter
+0.0750.9%+1.3%3
AatroxFilter
+0.0549.2%+1.2%9
LilliaFilter
+0.0350.0%+1.0%6
ZyraFilter
+0.0350.0%+1.4%2
WarwickFilter
+0.0250.0%+1.0%4
RammusFilter
+0.0250.0%+1.3%2
EvelynnFilter
-0.0050.0%+1.0%2
FiddlesticksFilter
-0.0250.0%+0.8%2
KaynFilter
-0.0950.0%+0.5%14
IvernFilter
-0.1548.1%-0.4%2
Xin ZhaoFilter
-0.1950.0%+0.3%12
EkkoFilter
-0.2549.1%-0.3%5
MalphiteFilter
-0.2848.1%-2.3%2
JayceFilter
-0.2848.1%-2.3%2
ZedFilter
-0.2950.0%-1.2%4
AmbessaFilter
-0.3150.0%-0.0%12
SylasFilter
-0.3449.1%-0.3%7
BrandFilter
-0.3649.1%-0.9%5
Kha'ZixFilter
-0.4149.1%-0.6%7
ViFilter
-0.5948.2%-1.4%6
NocturneFilter
-0.6246.3%-2.3%4
KindredFilter
-0.6547.3%-2.0%5
UdyrFilter
-0.7747.4%-1.5%7
Master YiFilter
-1.3845.6%-3.4%7
TalonFilter
-2.2546.0%-3.1%13
Lee SinFilter
-3.5245.7%-3.4%20
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
+2.1354.1%+3.9%11
LuxFilter
+1.6753.4%+4.4%8
LeBlancFilter
+1.1553.6%+3.7%6
XerathFilter
+1.0951.7%+2.4%10
Twisted FateFilter
+0.8950.8%+2.4%9
AkshanFilter
+0.8853.7%+4.2%4
YoneFilter
+0.8452.5%+1.6%9
YasuoFilter
+0.6752.7%+2.4%5
KatarinaFilter
+0.6350.9%+2.0%7
Xin ZhaoFilter
+0.5952.8%+3.6%3
LissandraFilter
+0.5550.9%+1.7%7
TryndamereFilter
+0.4951.9%+4.7%2
ZiggsFilter
+0.4851.9%+2.1%4
DianaFilter
+0.4050.9%+2.6%3
TaliyahFilter
+0.3150.9%+1.8%3
HweiFilter
+0.2950.9%+1.0%5
QiyanaFilter
+0.2950.9%+1.6%3
NaafiriFilter
+0.2750.9%+1.5%3
AniviaFilter
+0.2650.9%+1.4%3
VladimirFilter
+0.2650.9%+1.4%3
ZoeFilter
+0.2350.0%+0.9%6
SionFilter
+0.1950.0%+1.5%2
SmolderFilter
+0.1251.9%-0.0%2
MalzaharFilter
+0.0950.0%+0.2%6
KassadinFilter
+0.0650.0%+0.1%6
AzirFilter
+0.0150.9%-0.5%5
EkkoFilter
-0.0249.1%-0.0%5
SyndraFilter
-0.0349.1%+0.1%7
GalioFilter
-0.0449.1%-0.6%3
CassiopeiaFilter
-0.0549.1%-0.6%3
TalonFilter
-0.0649.1%-0.7%3
IreliaFilter
-0.0649.1%-0.7%3
SwainFilter
-0.0948.1%-1.5%2
BrandFilter
-0.1049.1%-1.1%3
RyzeFilter
-0.1650.0%-0.9%6
SingedFilter
-0.2247.2%-1.5%3
TristanaFilter
-0.2448.1%-3.4%2
JayceFilter
-0.2649.1%-1.3%5
AkaliFilter
-0.2749.1%-0.8%7
VeigarFilter
-0.2747.2%-1.9%3
AnnieFilter
-0.6146.3%-3.1%4
OriannaFilter
-0.6549.2%-1.7%9
MelFilter
-0.7650.0%-2.7%8
ViktorFilter
-0.9548.5%-1.1%16
Aurelion SolFilter
-0.9845.5%-3.9%5
FizzFilter
-0.9946.6%-2.2%8
ZedFilter
-1.3146.6%-3.3%8
SylasFilter
-1.8746.8%-3.2%12
AhriFilter
-4.8345.3%-4.1%25
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.
AsheFilter
+3.2356.3%+7.6%21
EzrealFilter
+2.3555.6%+5.1%22
CaitlynFilter
+1.0852.9%+3.2%18
JinxFilter
+1.0452.2%+3.5%17
BrandFilter
+0.9255.4%+7.6%6
Kai'SaFilter
+0.6452.0%+1.6%25
TristanaFilter
+0.3551.7%+2.8%8
VarusFilter
+0.2151.7%+1.9%8
XerathFilter
+0.1951.9%+3.4%4
VayneFilter
+0.1150.8%+1.4%9
Kog'MawFilter
+0.0750.9%+2.8%3
ZeriFilter
+0.0550.0%+1.2%10
ZiggsFilter
+0.0150.0%+1.6%4
SyndraFilter
-0.0450.0%+1.5%2
KalistaFilter
-0.0850.0%+0.5%2
SamiraFilter
-0.0850.0%+0.5%2
Vel'KozFilter
-0.0948.1%+0.9%2
YasuoFilter
-0.1048.1%+0.6%2
Aurelion SolFilter
-0.1248.1%-0.0%2
VeigarFilter
-0.1348.1%-0.2%2
SennaFilter
-0.1448.2%+0.6%6
MalzaharFilter
-0.2048.1%-2.1%2
XayahFilter
-0.2248.2%-0.1%6
ApheliosFilter
-0.2549.1%-1.0%5
CorkiFilter
-0.2649.1%-0.6%7
LuxFilter
-0.3246.3%-1.4%4
TwitchFilter
-0.4448.4%-0.6%12
SivirFilter
-0.5747.4%-2.3%7
DravenFilter
-0.6047.5%-1.8%9
LucianFilter
-0.7148.4%-1.4%14
YunaraFilter
-0.7346.4%-4.0%6
Miss FortuneFilter
-0.9946.8%-2.6%12
SmolderFilter
-1.3446.4%-2.0%19
JhinFilter
-2.8644.3%-5.6%20
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
+4.6156.7%+8.4%17
AlistarFilter
+1.2854.4%+5.5%7
LuluFilter
+1.1351.4%+2.0%22
JannaFilter
+0.4950.9%+2.7%7
ZoeFilter
+0.3552.8%+3.6%3
BlitzcrankFilter
+0.3350.9%+2.6%5
MaokaiFilter
+0.2351.9%+3.9%2
TaricFilter
+0.2251.9%+3.6%2
SennaFilter
+0.1949.2%+1.3%15
SonaFilter
+0.1850.0%+1.6%6
BraumFilter
+0.1750.0%+1.0%12
EliseFilter
+0.1550.9%+1.9%3
Tahm KenchFilter
+0.1450.9%+1.8%3
SorakaFilter
+0.1350.0%+1.0%10
YuumiFilter
+0.1050.9%+0.7%7
PantheonFilter
+0.0550.9%+0.7%3
ZileanFilter
+0.0349.1%+1.1%5
ShacoFilter
-0.0350.0%-0.1%2
BrandFilter
-0.0749.1%+0.3%5
RellFilter
-0.0848.4%+0.9%12
CamilleFilter
-0.1149.1%-0.4%3
Vel'KozFilter
-0.1148.1%-0.7%2
PykeFilter
-0.1349.1%+0.2%7
AsheFilter
-0.1550.0%-2.1%2
AniviaFilter
-0.1748.1%-1.7%2
ZyraFilter
-0.1949.1%-0.5%5
LeonaFilter
-0.3248.3%-0.3%8
XerathFilter
-0.3549.1%-1.7%5
NamiFilter
-0.4349.3%-0.0%21
MilioFilter
-0.5548.3%-0.9%10
MorganaFilter
-0.5645.3%-4.2%3
BardFilter
-0.6147.5%-1.0%9
NautilusFilter
-0.7048.5%-0.6%16
SeraphineFilter
-0.7647.8%-0.2%19
RakanFilter
-0.9046.7%-1.6%10
LuxFilter
-0.9247.5%-2.3%9
KarmaFilter
-2.6246.5%-3.1%21
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.
AkaliFilter
181.553.4%+4.5%7
GangplankFilter
168.652.2%+2.5%11
YoneFilter
165.251.4%+2.7%11
GarenFilter
127.951.2%+1.7%12
SettFilter
127.551.1%+1.7%12
FioraFilter
126.450.8%+1.8%12
TeemoFilter
92.451.4%+1.8%8
ZaahenFilter
84.751.8%+2.8%5
Dr. MundoFilter
71.551.3%+1.8%6
CamilleFilter
70.451.1%+1.9%6
VayneFilter
69.951.0%+1.9%6
K'SanteFilter
66.249.4%+1.1%11
GnarFilter
66.049.3%+1.1%11
NasusFilter
58.750.3%+1.0%9
OrnnFilter
48.750.6%+0.9%7
OlafFilter
47.950.4%+0.9%7
MalphiteFilter
47.550.4%+1.0%7
AmbessaFilter
46.750.5%+2.0%4
ZacFilter
29.252.3%+1.9%2
AatroxFilter
26.949.0%+0.3%14
NaafiriFilter
22.949.7%+2.0%2
KennenFilter
22.650.4%+1.0%3
YasuoFilter
20.449.7%+1.0%3
AniviaFilter
16.750.5%-0.1%6
RivenFilter
14.949.4%+0.1%8
VarusFilter
13.949.2%+0.1%8
KayleFilter
12.349.6%+0.0%6
UrgotFilter
10.049.9%+0.0%4
PantheonFilter
9.949.1%+0.1%6
VolibearFilter
7.448.6%+0.2%6
AzirFilter
6.550.1%-0.0%2
RyzeFilter
6.350.0%-0.0%2
SionFilter
5.848.9%+0.1%4
RumbleFilter
5.648.8%+0.1%4
HeimerdingerFilter
3.148.7%+0.1%2
KalistaFilter
2.748.5%+0.1%2
MaokaiFilter
1.748.1%+0.1%2
ZedFilter
-8.149.0%-0.9%3
Xin ZhaoFilter
-10.348.3%-0.9%3
GragasFilter
-16.947.6%-1.9%2
Master YiFilter
-17.547.4%-1.9%2
GwenFilter
-17.847.2%-1.9%2
CassiopeiaFilter
-18.448.0%-0.8%5
Twisted FateFilter
-18.746.9%-1.9%2
SkarnerFilter
-20.046.3%-1.9%2
IllaoiFilter
-20.548.6%-0.8%7
KledFilter
-30.848.4%-1.9%4
SingedFilter
-32.248.0%-1.8%4
Tahm KenchFilter
-46.945.1%-2.7%3
MordekaiserFilter
-54.946.4%-1.6%6
IreliaFilter
-60.647.8%-1.6%8
VladimirFilter
-70.146.0%-2.6%5
TryndamereFilter
-108.645.8%-3.5%6
DariusFilter
-110.546.5%-2.4%9
JayceFilter
-128.246.3%-2.2%11
ShenFilter
-182.247.0%-3.3%12
YorickFilter
-275.245.1%-3.5%15
JaxFilter
-296.245.7%-3.5%17
RenektonFilter
-362.043.5%-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.
Lee SinFilter
344.754.0%+4.7%29
RengarFilter
288.555.9%+7.2%15
Master YiFilter
132.152.6%+3.3%14
AmumuFilter
126.555.2%+6.3%7
ZedFilter
53.249.3%+2.1%10
TalonFilter
48.850.2%+0.9%15
ShacoFilter
48.251.1%+1.8%8
Rek'SaiFilter
48.053.1%+2.7%5
QuinnFilter
34.249.6%+2.0%6
FiddlesticksFilter
29.752.0%+2.9%3
SejuaniFilter
29.051.6%+2.9%3
EkkoFilter
25.950.0%+1.0%7
AatroxFilter
23.051.3%+0.9%5
GragasFilter
14.850.7%+1.0%3
SkarnerFilter
13.950.2%+1.0%3
PantheonFilter
13.850.1%+1.0%3
KaynFilter
12.249.1%+0.2%10
WukongFilter
10.849.4%+0.1%8
EvelynnFilter
9.149.5%+0.1%6
QiyanaFilter
7.949.0%+0.1%6
RammusFilter
7.749.7%+0.0%4
Cho'GathFilter
6.250.1%-0.0%2
NidaleeFilter
5.749.6%+0.0%2
WarwickFilter
5.549.4%+0.0%2
AmbessaFilter
5.248.5%+0.1%4
EliseFilter
4.848.9%+0.0%2
ZacFilter
4.848.9%+0.0%2
Dr. MundoFilter
4.248.4%+0.1%2
JayceFilter
3.848.1%+0.1%2
VolibearFilter
3.047.5%+0.1%2
UdyrFilter
-1.548.6%-0.9%3
IvernFilter
-3.449.0%-0.9%5
NasusFilter
-3.948.7%-1.9%2
Nunu & WillumpFilter
-4.148.5%-1.9%2
GwenFilter
-5.247.7%-1.9%2
HecarimFilter
-8.647.9%-0.7%7
Xin ZhaoFilter
-11.148.3%-0.4%17
LilliaFilter
-13.547.6%-1.8%4
OlafFilter
-19.645.4%-2.7%3
Kha'ZixFilter
-22.147.0%-1.6%6
Bel'VethFilter
-23.948.7%-1.8%8
BriarFilter
-27.747.3%-1.6%8
SylasFilter
-41.346.5%-2.5%7
NaafiriFilter
-44.947.9%-1.2%18
ViegoFilter
-66.046.5%-2.1%13
KindredFilter
-76.746.0%-3.2%10
ShyvanaFilter
-139.244.3%-4.6%12
NocturneFilter
-153.645.2%-4.6%14
GravesFilter
-158.145.7%-3.2%21
ViFilter
-174.443.5%-5.3%13
Jarvan IVFilter
-366.442.3%-6.3%24
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
242.552.0%+3.6%35
LucianFilter
118.251.9%+3.4%16
JinxFilter
59.050.4%+0.8%25
SennaFilter
54.952.2%+1.5%12
YunaraFilter
52.249.9%+2.0%12
SamiraFilter
46.651.6%+2.8%7
VayneFilter
45.450.7%+1.9%10
SmolderFilter
32.050.0%+0.0%34
DravenFilter
30.250.1%+1.0%11
ZeriFilter
25.950.5%+0.9%9
TristanaFilter
25.750.4%+0.9%9
BrandFilter
16.951.4%+0.9%5
Kog'MawFilter
16.451.1%+0.9%5
NilahFilter
10.351.0%+0.9%3
CaitlynFilter
10.048.6%-0.0%35
YasuoFilter
6.150.8%-0.1%4
TwitchFilter
5.949.4%+0.1%6
LuxFilter
3.450.6%-0.0%2
XerathFilter
2.749.9%+0.0%2
SyndraFilter
-2.748.9%-0.9%3
XayahFilter
-4.249.1%-0.9%5
AsheFilter
-4.749.1%-0.5%29
HeimerdingerFilter
-5.149.0%-2.0%2
KalistaFilter
-7.548.1%-0.7%7
SeraphineFilter
-10.848.7%-1.9%4
SwainFilter
-11.048.6%-1.9%4
ZiggsFilter
-11.848.1%-1.8%4
SivirFilter
-29.747.3%-1.4%12
Miss FortuneFilter
-53.145.7%-3.3%8
ApheliosFilter
-54.245.1%-3.2%8
EzrealFilter
-63.946.6%-1.3%25
VarusFilter
-86.744.7%-3.8%11
Kai'SaFilter
-459.238.6%-9.3%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
301.752.3%+3.6%31
KarmaFilter
210.151.7%+3.2%24
NautilusFilter
210.151.2%+2.2%35
BraumFilter
152.254.3%+5.1%10
LuluFilter
134.651.2%+2.5%19
BardFilter
121.551.9%+2.3%17
PykeFilter
39.950.1%+1.0%15
SonaFilter
26.751.5%+1.8%6
SorakaFilter
26.350.1%+1.0%11
Tahm KenchFilter
12.150.8%+1.9%4
MorganaFilter
10.649.6%+1.1%7
ZyraFilter
2.949.5%+1.0%5
SennaFilter
1.850.1%-0.0%12
ZileanFilter
-1.751.0%+0.9%3
TaricFilter
-2.150.8%+1.0%3
MelFilter
-4.146.8%+1.3%5
BlitzcrankFilter
-4.549.8%+0.0%8
IvernFilter
-12.749.8%+0.0%2
SylasFilter
-15.148.1%+0.1%2
MaokaiFilter
-20.149.1%-0.9%3
SwainFilter
-24.346.8%-0.8%3
NeekoFilter
-25.647.9%-0.8%5
NidaleeFilter
-25.646.1%-0.8%3
ZacFilter
-27.046.6%-1.9%2
AniviaFilter
-27.246.5%-1.9%2
PantheonFilter
-27.647.1%-0.7%5
AlistarFilter
-28.348.4%-0.7%9
LeonaFilter
-29.248.8%-0.7%13
YuumiFilter
-29.847.6%-0.3%15
BrandFilter
-34.847.5%-1.8%4
Vel'KozFilter
-34.947.5%-1.8%4
PoppyFilter
-38.947.0%-2.8%3
RellFilter
-45.848.8%-1.8%8
JannaFilter
-47.448.2%-1.7%8
RakanFilter
-58.048.3%-1.6%12
LuxFilter
-60.744.8%-3.6%4
XerathFilter
-62.943.8%-3.5%4
SeraphineFilter
-120.848.0%-2.1%23
MilioFilter
-141.045.0%-3.9%11
ThreshFilter
-300.245.0%-4.7%23
Shadowflame
24% PR · 93 games
48.3%

Bait items

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

Shadowflame
Shadowflame
24% PR · 93 games
48.3%
Blackfire Torch
Blackfire Torch
34% PR · 132 games
48.9%
Liandry's Torment
Liandry's Torment
15% PR · 57 games
50.5%
Zhonya's Hourglass
Zhonya's Hourglass
8% PR · 31 games
50.6%
Rabadon's Deathcap
Rabadon's Deathcap
13% PR · 49 games
53.5%
Win RateⓘBayesian-smoothed: (wins + 25) / (games + 50). Reliable even with small samples.
50.5%·Average compared to other champions in this role
Pick Rate
0.2%↓Low compared to other champions in this role
Ban Rate
3.3%·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.

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
31.4% PR · 52.5% WR · 11 games
123456789101112131415161718
QLay Waste
1
4
5
7
9
WWall of Pain
3
EDefile
2
8
10
RRequiem
6
11
20.0% PR · 52.6% WR · 7 games
123456789101112131415161718
QLay Waste
1
3
5
7
9
WWall of Pain
8
EDefile
2
4
10
RRequiem
6
11
14.3% PR · 54.5% WR · 5 games
Runes
Domination · Sorcery
13% PR · 51.4% WR
DominationDark HarvestCheap ShotGrisly MementosUltimate Hunter
SorceryAxiom ArcanistGathering Storm
Adaptive ForceAdaptive ForceScaling Health
Summoners
ExhaustFlash
Exhaust + Flash
57% PR · 51.9% WR
Items
Starting items
Doran's Ring
Doran's Ring
91% PR · 49.3% WR
Core build
Item 1
Blackfire Torch
Blackfire Torch
72% PR · 50.4% WR
Malignance
Malignance
21% PR · 49.0% WR
Item 2
Skill order
123456789101112131415161718
Q

Rune Pages

Domination · Sorcery
13% PR · 51.4% WR
DominationDark HarvestCheap ShotGrisly MementosUltimate Hunter
SorceryAxiom ArcanistGathering Storm
Adaptive ForceAdaptive ForceScaling Health
Sorcery · Precision
6% PR · 46.8% WR
SorceryDeathfire TouchAxiom ArcanistTranscendenceScorch
PrecisionPresence of MindLast Stand
Adaptive ForceAdaptive Force
Inspiration · Sorcery
5% PR · 51.4% WR
InspirationFirst StrikeCash BackTriple TonicCosmic Insight
SorceryAxiom ArcanistGathering Storm
Adaptive ForceAdaptive Force

Summoner Spells

ExhaustFlash
Exhaust + Flash
57% PR · 51.9% WR
FlashTeleport
Flash + Teleport
23% PR · 47.7% WR
FlashIgnite
Flash + Ignite
7% PR · 49.4% WR
ExhaustIgnite
Exhaust + Ignite
7% PR · 44.4% 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
0.000
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: 0.000

14
15
17
18
12
13
16
14
15
17
18
12
13
16
Shadowflame
Shadowflame
43% PR · 52.3% WR
Liandry's Torment
Liandry's Torment
36% PR · 51.6% WR
Item 3
Rabadon's Deathcap
Rabadon's Deathcap
32% PR · 52.8% WR
Shadowflame
Shadowflame
23% PR · 52.5% WR
Zhonya's Hourglass
Zhonya's Hourglass
13% PR · 55.6% WR
Item 4
Rabadon's Deathcap
Rabadon's Deathcap
23% PR · 50.6% WR
Void Staff
Void Staff
21% PR · 57.1% WR
Zhonya's Hourglass
Zhonya's Hourglass
16% PR · 51.3% 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
31.4% PR · 52.5% WR · 11 games
Health
Scaling Health
·Average compared to other champions in this role
·Average compared to other champions in this role

Win Rate Distribution

49 opponents
Q1: 49.1%Median: 50.0%Q3: 50.9%IQR: 1.9%