KarthusSupport counters

Off-meta Support

Jungle58%Bot28%Mid7%Top4%Support3%

Win: 47.0%; ▼3.0 vs Support
LP a game: +1.10; ±0.96
Games: 1,925; a win +22.1 · a loss −17.9
Pick · Ban: 0.06 · 0.53%; as Support · any role

Overview Build Runes Matchups Duos

Updated 7 Nov, 03:02 UTCHow we measure

Champions against Karthus

Find an opponent

Counters02+ pts over expected

Even2

Countered02+ pts under expected

Highest estimate first · the opponent's estimated win rate

Lux: Even lane, Lux 47.3% over 146 games.

Even lanemet in 7.6% of games

Lux

24th of 41 Support · 49.5% in Support · 146 games

Lux win rate

47.3%

146 games · 39.3%–55.3%

expected 51.5

▼ 4.3 pts under expectedThe range holds expected

Estimate 50.1%: the win rate pulled toward expected, more so the fewer games there are (146 here).

Lane at 15

Lux minus Karthus · 146 games

Gold−101

CS−3.0

XP−16

Dotted: Karthus's opponents on average (−126 gold).

Early and late

Under 25 min60.0%25 games

35 min or more35.7%42 games

Karthus LP a game

+3.4±3.3

Too few games to show what is played against Karthus: 300 are needed, this pair has 146.

Every opponent as a table31 with 20+ games

Support Karthus against each lane opponent with 20 games or more
Opponent
Braum	27	70.4%52%–84%	55.4%	+16.5	−482	−6.7	−69
Soraka	42	64.3%49%–77%	54.8%	+10.9	−468	−11.4	−223
Blitzcrank	51	62.7%49%–75%	54.3%	+9.9	−636	−16.2	−356
Rakan	36	66.7%50%–80%	54.1%	+14.1	−616	−9.1	−233
Milio	34	58.8%42%–74%	54.0%	+5.4	−322	−9.9	−34
Seraphine	134	56.7%48%–65%	54.0%	+4.0	−155	−7.5	−18
Janna	37	56.8%41%–71%	53.8%	+3.3	−476	−10.0	−209
Senna	63	58.7%46%–70%	53.8%	+5.9	+108	−3.7	+19
Vel'Koz	37	59.5%43%–74%	53.8%	+6.4	+247	−4.2	+139
Zilean	28	57.1%39%–73%	53.5%	+3.9	−395	−0.6	+229
Rell	30	53.3%36%–70%	53.5%	−0.2	−561	−6.9	−108
Renata Glasc	22	72.7%52%–87%	53.5%	+20.8	−711	−11.3	−119
Lulu	44	65.9%51%–78%	53.5%	+14.3	−201	−7.5	+168
Leona	89	50.6%40%–61%	53.5%	−3.8	−241	−4.5	−95
Alistar	24	58.3%39%–76%	53.4%	+5.3	−794	−12.2	−283
Morgana	90	56.7%46%–66%	53.3%	+4.3	−99	−3.6	−105
Nami	82	52.4%42%–63%	53.3%	−1.1	−355	−12.0	−85
Zyra	48	47.9%34%–62%	52.6%	−5.5	−183	−2.8	−302
Brand	36	52.8%37%–68%	52.0%	+0.9	−152	−2.9	−139
Thresh	95	47.4%38%–57%	51.6%	−5.6	−543	−5.7	−180

Questions

Who counters Karthus in Support?

No opponent clearly beats Karthus in Support yet. Seraphine has the highest win rate: 56.7% over 134 games (95% range 48.3–64.8%). EUW Ranked, all ranks, patch 26.21.

What does Karthus beat in Support?

No opponent is clearly beaten yet. Karthus wins 52.7% of 146 games against Lux, its highest. EUW Ranked, all ranks, patch 26.21.

What is Karthus's win rate in Support?

47.0% over 1,925 games (95% range 44.8–49.3%). EUW Ranked, all ranks, patch 26.21.

Which matchups are even for Karthus in Support?

2 of 2 opponents with 100+ games, such as Lux and Seraphine: their win rate range includes 50%, so neither side has a clear edge.

How many games is this based on?

1,925 Karthus games in Support, against 2 opponents with 100+ games each. EUW Ranked, all ranks, patch 26.21, 21 Oct – 4 Nov 2026.