Karthus

the Deathsinger

MidPatch 16.21Emerald 2+Solo queue

Win rate

50%

Pick rate

Ban rate

Games

Runes

Summoner spells

Exhaust + Flash
85%53%83

Starting items

Leaving the fountain

Doran's Ring, Health Potion, Health Potion
48%—47
Doran's Ring, Health Potion, Health Potion, Stealth Ward
41%—40

Core build

First three legendaries, in order

Blackfire Torch → Stormsurge → Shadowflame
19%—19
Blackfire Torch → Shadowflame → Rabadon's Deathcap
16%—16

Boots

Sorcerer's Shoes
96%49%94

Later items

Not enough games run this long yet to say what goes in the last slots.

Abilities

Most-taken ability at each level

Max order·Lay Waste → Defile → Wall of Pain

91%53%89

Level by level

SplitEveryone

The most common ability to level at each level, one to eighteen
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Q	Q		Q		Q		Q		Q
W				W										W	W		W	W
E		E						E		E		E	E
R						R					R					R

Matchups

No lane opponent has come up 60 times yet. Counters need a bigger sample than builds do — a few points either way is noise until then.

Counted from 38,055 ranked solo queue matches played on patch 16.21 by Emerald 2+ players on EUW, read from Riot's match API. Percentages are shares of the games in this lane, not of the builds listed — so three rows adding to less than 100% means the rest of the games did something else. Win rates are hidden where there are too few games to state one.