What is the best build for Kai'Sa?

We do not publish a best build for Kai'Sa, and the reason is worth thirty seconds. The most recorded Kai'Sa bot build on patch 16.14 is Nashor's Tooth, Guinsoo's Rageblade and Kraken Slayer, in 498 games. A finished item set is read at the end of the game, so a build only appears once the game ran long enough to buy it, and a game that runs long is usually a game you were winning. Any share of wins taken from those games leans high for that reason on its own, which is why there is not one in this answer. The page lists every recorded build with the games behind it.

What are the best runes for Kai'Sa?

The most recorded Kai'Sa bot rune page on patch 16.14 takes Lethal Tempo out of Precision, with Presence of Mind, Legend: Bloodline and Coup de Grace beside it and Magical Footwear and Triple Tonic out of Inspiration. Players who ran it won 48.8% of 3,837 games, range 47.2% to 50.3%. A rune page is locked in at champion select, so that share is not inflated by long games the way a build is, but it counts who picked the page rather than what the page did.

Kai'Sa build, patch 16.14

Q: What skill order should I use on Kai'Sa?

Recorded Kai'Sa bot players max Q, then W, then E. Only 37 recorded games on patch 16.14. A soft read. Win comparisons only count games that ran long enough to finish the max: 64% of 36 Q-first games and 100% of 1 W-first games. Short games are missing from both sides, and short games are usually decided ones.

4,445 games of Kai'Sa recorded on patch 16.14, across bot, mid, top, jungle and support.

Win rate

48.9% of bot games this patch

Pick rate

5.5% of bot games

Games

4,228 bot, patch 16.14

Rank in role

15 of 77 bot champions

Win impact against the average bot pick on patch 16.14: -0.8 wins per 100 games (range -2.0 to 0.5) 4,228 games Pooled

What most Kai'Sa bot players build, patch 16.14

Build Nashor's Tooth, Guinsoo's Rageblade and Kraken Slayer, and run Lethal Tempo

The rune page they run

Precision

Lethal Tempo

Inspiration

Shards

3,837 games ran this page exactly as it is drawn. We never stitch the most picked keystone onto the most picked second row and call it a page: nobody ran that one.

The skill path Each filled cell is the skill most players took at that level, from 37 games.
skill	1	2	3	4	5	6	7	8	9	10	11	12
Q	Q			Q	Q		Q		Q
W		W
E			E					E		E	E	E
R						R

Levels 10 to 18

10 E, 11 E, 12 E

Max Q, then W, then E. The level by level count.

498 games finished this exact set. It is the set recorded most often, which is a fact about players rather than about the items.

Share of those games that were wins, in percent 46.6% (range 42.2-51.0) · 498 games · Measured

Games that finish a build are games that lasted, and lasting usually means winning, so this figure leans high before the items do anything. It is how those games went, not what the build does to your chances. How far that can bend a number.

Kai'Sa bot is the role with the most recorded games on patch 16.14: 4,228 games, of which 2,067 were wins. That is the role this page leads with. Measured on this page: bot, mid and top, the roles that cleared 30 recorded games.

wins 0.8 per 100 vs the bot average · 4,228 games on 16.14 · first-time players measured (3,877 games) · no clear move vs 16.13 (+3.0, range -5.8 to +11.8)

The build above is the one recorded most often, nothing more. Every recorded build, with its own games and its own share, is in the build list, in the order players built them.

Why this answer

A champion and role pair needs 30 recorded games before we put a score or a win impact on it: under that, a handful of lucky games moves a win rate by ten points. The same floor applies to a single build and to a single rune page, and anything under it prints its games and no number.

The share on that figure says how the games went, not what the build does to you. Nothing on this page measures that; the method note at the end says why.

What do most Kai'Sa players build?

Item sets recorded on patch 16.14, most built first, never sorted by how the games went. The share is how many of a build's own games were wins; a build under 30 games shows its games and no share.

Kai'Sa, bot

8 item sets were recorded in this role and 8 of them cleared 30 games.

Nashor's Tooth, Guinsoo's Rageblade and Kraken Slayer
46.6% 498 games
Nashor's Tooth, Guinsoo's Rageblade, Zhonya's Hourglass and Kraken Slayer
55.9% 313 games
Phantom Dancer, Guinsoo's Rageblade and Kraken Slayer
48.5% 202 games
Statikk Shiv, Nashor's Tooth and Guinsoo's Rageblade
55.2% 181 games
Statikk Shiv, Nashor's Tooth, Guinsoo's Rageblade and Zhonya's Hourglass
46.5% 86 games
Statikk Shiv, Luden's Echo and Voltaic Cyclosword
50.0% 80 games

A finished set is read at the end of the game, so every share here leans high: games that last long enough to finish a build are usually games that were already going well. How far that can bend a number.

Kai'Sa, mid

0 item sets were recorded in this role and 0 of them cleared 30 games.

No mid build recorded yet

We have 126 games of Kai'Sa mid on patch 16.14, but no item set repeated often enough to record as a build.

Read the rune pages instead

Kai'Sa, top

0 item sets were recorded in this role and 0 of them cleared 30 games.

No top build recorded yet

We have 60 games of Kai'Sa top on patch 16.14, but no item set repeated often enough to record as a build.

Read the rune pages instead

What runes do most Kai'Sa players run?

Whole pages that players actually ran, most recorded first. A page is locked in at champion select, so long games do not inflate its share the way they inflate a build's; it still counts who picked the page rather than what the page did.

Kai'Sa, bot

10 complete pages were recorded in this role and 4 of them cleared 30 games.

Lethal Tempo Precision with Inspiration

3,837 games

Precision

Lethal Tempo

Inspiration

Shards

3,837 games ran this page exactly as it is drawn. We never stitch the most picked keystone onto the most picked second row and call it a page: nobody ran that one.

Other pages players ran

Press the Attack Precision with Inspiration

208 games

Lethal Tempo Precision with Sorcery

45 games

Press the Attack Precision with Domination

38 games

Keystones picked, one slot on its own

Lethal Tempo: 48.7% 3,926 games
Press the Attack: 50.4% 254 games
Hail of Blades: 55.3% 38 games

8 keystones were recorded in this role: one slot on its own, counted across every page that used it, so the share carries the rest of each page with it.

Kai'Sa, mid

9 complete pages were recorded in this role and 1 of them cleared 30 games.

First Strike Inspiration with Sorcery

56 games

Inspiration

First Strike

Sorcery

Shards

56 games ran this page exactly as it is drawn. We never stitch the most picked keystone onto the most picked second row and call it a page: nobody ran that one.

Keystones picked, one slot on its own

First Strike: 44.3% 61 games

5 keystones were recorded in this role: one slot on its own, counted across every page that used it, so the share carries the rest of each page with it.

Kai'Sa, top

6 complete pages were recorded in this role and 1 of them cleared 30 games.

First Strike Inspiration with Sorcery

37 games

Inspiration

First Strike

Sorcery

Shards

37 games ran this page exactly as it is drawn. We never stitch the most picked keystone onto the most picked second row and call it a page: nobody ran that one.

Keystones picked, one slot on its own

First Strike: 42.1% 38 games

4 keystones were recorded in this role: one slot on its own, counted across every page that used it, so the share carries the rest of each page with it.

What skill order should I use?

Counted from recorded level-ups on patch 16.14, one player per game.

Max Q, then W, then E

Only 37 recorded games on patch 16.14. A soft read. Win comparisons only count games that ran long enough to finish the max: 64% of 36 Q-first games and 100% of 1 W-first games. Short games are missing from both sides, and short games are usually decided ones.

not enough games

Kai'Sa bot skill path Each filled cell is the skill most players took at that level, from 37 games.
skill	1	2	3	4	5	6	7	8	9	10	11	12
Q	Q			Q	Q		Q		Q
W		W
E			E					E		E	E	E
R						R

Levels 10 to 18

10 E, 11 E, 12 E

Almost nobody maxed W first, so there is nothing to compare. not enough games yet. 24 games so far, this needs 30. 23 games maxed Q first, 1 game maxed W first.

Kai'Sa, mid

No mid skill order recorded yet

We have 126 games of Kai'Sa mid on patch 16.14, and no level-ups recorded in them. Skill order comes from level-up events, and some champions and some games do not carry them.

How we count level-ups

Kai'Sa, top

No top skill order recorded yet

We have 60 games of Kai'Sa top on patch 16.14, and no level-ups recorded in them. Skill order comes from level-up events, and some champions and some games do not carry them.

How we count level-ups

When do players buy each piece?

The pieces of the most recorded Kai'Sa bot build, in the order players buy them. The time is the middle of the spread across every recorded game on patch 16.14, measured at the buy rather than at the end of the game: half the recorded buys of the item happen before it, half after.

Buy times, earliest first

Kraken Slayer: 10:57 840 games
Nashor's Tooth: 17:09 304 games
Guinsoo's Rageblade: 17:25 362 games

The bar is scaled to the latest piece of the set. Each item links to its own page, where the whole spread sits beside the games behind it.

Who counters Kai'Sa?

The opponents Kai'Sa bot loses to most and the teammates Kai'Sa gains the most beside on patch 16.14. The chip is the edge in wins per 100 games, and the games behind it sit under the name.

Hardest opponents

70 more opponents sit under 50 games against Kai'Sa and are counted, not ranked. Every measured Kai'Sa opponent, with the full table

Best teammates

Every measured Kai'Sa teammate, with the full table

These numbers come from 108,616 ranked games we recorded on EUW, Korea and NA, found by following Diamond players and the people they play with. That is not every rank and it is not every region. Everything on this page is patch 16.14. Counted up to 24 July 2026.

How does Kai'Sa rank?

Every role we recorded Kai'Sa in on patch 16.14, scored or not. Win impact is measured against the average pick in that role on the same patch, and a role needs 30 recorded games before it is scored.

Kai'Sa by role

bot B -0.8 wins per 100 games (range -2.0 to 0.5) 4,228 games Pooled: 53 4,228 games
mid C -0.5 wins per 100 games (range -2.6 to 1.7) 126 games Pooled: 43 126 games
top C -0.2 wins per 100 games (range -2.4 to 1.9) 60 games Pooled: 44 60 games
jungle not enough games yet. 23 games so far, this needs 30.: not scored 23 games
support not enough games yet. 8 games so far, this needs 30.: not scored 8 games

Why no share of wins on this page says a build is good for Kai'Sa

A finished item set is read at the end of the game. A player who bought the first two items and lost at twenty minutes never finished the set, so they are not in its row. Everybody in the row lasted long enough to buy it, and lasting is most of what winning looks like. The share those games won is pushed up by that on its own, before the items do anything at all, and the push is largest on the most expensive builds and backwards on the ones you buy when a game is going badly.

We know the size of it. In simulation, with every item's real effect set to exactly zero, an item read at the end of the game shows about 92% as a sixth completed item. A defensive item with a real 5 point benefit shows about 20 points the wrong way, because it gets bought when a player is behind. The measurement is here.

So this page counts and labels rather than ranks. The estimate that answers the real question is taken at the moment of the buy, from the state the purchase happened in, and it runs in the desktop app because it needs the game in front of it.