Mains view. This shows what players who main Kai'Sa (it’s their #1 mastery champion) pick in 1,197 of their games. The verdicts and numbers are still everyone’s. Mains get their own at 1,500 games. Everyone’s page
TerminusBaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.58% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.−1.5%±1.8vs Nashor's Tooth+0.9%±1.7First 10 minAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. +0.5%Rest of gameAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. +0.3%
Nashor's ToothUnclear31% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.−3.1%±2.4vs Terminus−0.9%±1.7First 10 minAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.5%Rest of gameAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.3%
Phantom DancerUnclear3% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.vs Terminus+0.3%±2.3First 10 minAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. +0.5%Rest of gameAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.2%
Zhonya's HourglassUnclear2% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.vs Terminus−0.7%±2.4First 10 minAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.4%Rest of gameAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.3%Nashor's ToothBaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.61% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.−1.2%±3.9vs Terminus−0.5%±2.4First 10 minAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.4%Rest of gameAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. −0.1%TerminusUnclear23% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.vs Nashor's Tooth+0.5%±2.4First 10 minAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. +0.4%Rest of gameAfter buyingThe item counts from the minute it’s finished. The first number covers the next 10 minutes. +0.1%
Dusk and DawnNot enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.7% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Zhonya's HourglassNot enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.3% of gamesPicked hereHow often players buy this after the items to its left.vs expectedvs expectedHow games with this option ended against their win chance when it was chosen. It’s a hint. The verdict reads the win chance number.Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Not enough games after this pair yet. Pick a more common second item, or see every option below.
This is every step as Kai'Sa mains play it. Their most picked option comes first.
The main number is how much more an option wins than the most picked one in similar games. Those are games with the same game state and minute of purchase, played on the same patch by players with as much experience. A +2.0% means about two more wins per 100 games. Numbers from few games are pulled toward what the option does on other champions.
± is the marginMargin (±)The real number is very likely inside this range. More games make it narrower.. The real difference is very likely inside it. On the bar, the dot is the number and the band is the margin. The black line means no difference.
Better or Worse means the whole margin is on one side of zero and the difference is at least half a point. Even means we know the two are within a point of each other. Unclear means it could go either way. With Not enough games, there are too few games to say anything yet.
vs expected (WPA) asks whether games with the option ended better than their win chance when it was chosen. It doesn’t compare options with each other. Next to it is the win chance it’s usually taken at.
Item numbers start at the purchase and cover the first 10 min and the rest of the game.The full guide
It’s no better than Berserker's Greaves early on. It pulls clearly ahead in the rest of the game.
Items when behind or ahead
Each item is compared with the slot’s most bought one over the 10 minutes after it’s bought. Games are split by whether Kai'Sa was behind (40% win chance or less when bought), even, or ahead (60% or more). Where Kai'Sa’s own purchases are few, the number leans on every bot that buys the item.
No item does clearly better or worse than the most bought one in any game state yet. Stick with the usual build.
Doran's Bow is the most picked. The others are compared with it. Doran's Blade is the next most picked. The Baseline row compares the two. The Mains column is the share of mains’ games. Verdicts stay everyone’s until mains have 1,500 games.
Doran's BowOur pickOur pickThe option shown in What wins most often: the most picked one, unless another clearly wins more.93% of games · 94% of mains94%BaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.+0.3% ±1.8vs Doran's BladeLane +0.4%Mid −0.4%Late +0.3%vs expected −0.2%±1.1
Doran's Blade7% of games · 6% of mains6%Unclear−0.3% ±1.8same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +7.5% ±24.0Lane −0.4%Mid +0.4%Late −0.3%vs expected +0.5%±4.0Berserker's Greaves is the most picked. The others are compared with it. Gluttonous Greaves is the next most picked. The Baseline row compares the two. The Mains column is the share of mains’ games. Verdicts stay everyone’s until mains have 1,500 games.
Berserker's GreavesOur pickOur pickThe option shown in What wins most often: the most picked one, unless another clearly wins more.80% of games · 77% of mains77%BaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.−2.1% ±1.6vs Gluttonous GreavesFirst 10 min −0.3%Rest of game −1.4%vs expected −0.9%±1.2
Gluttonous Greaves17% of games · 20% of mains20%Better+2.1% ±1.6same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −5.1% ±9.6First 10 min +0.3%Rest of game +1.4%vs expected +2.6%±2.5
Sorcerer's Shoes2% of games · 2% of mains2%Too close to callToo close to callPlenty of games, but too few players tried both, or the gap with the most picked option is too small to call. It could go either way.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Kraken Slayer is the most picked. The others are compared with it. Statikk Shiv is the next most picked. The Baseline row compares the two. The Mains column is the share of mains’ games. Verdicts stay everyone’s until mains have 1,500 games.
Kraken SlayerOur pickOur pickThe option shown in What wins most often: the most picked one, unless another clearly wins more.75% of games · 81% of mains81%BaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.−1.1% ±1.7vs Statikk ShivFirst 10 min −0.2%Rest of game −0.9%vs expected +0.6%±1.2
Statikk Shiv20% of games · 14% of mains14%Unclear+1.1% ±1.7same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +6.0% ±8.6First 10 min +0.2%Rest of game +0.9%vs expected +2.3%±2.3
Hubris2% of games · 3% of mains3%Unclear−0.9% ±2.4same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −9.1% ±17.9First 10 min −0.5%Rest of game −0.3%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Yun Tal Wildarrows2% of games · 0% of mains0%Unclear0.0% ±2.2same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −15.3% ±19.3First 10 min −0.3%Rest of game +0.3%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Guinsoo's Rageblade is the most picked. The others are compared with it. Voltaic Cyclosword is the next most picked. The Baseline row compares the two. The Mains column is the share of mains’ games. Verdicts stay everyone’s until mains have 1,500 games.
Guinsoo's RagebladeOur pickOur pickThe option shown in What wins most often: the most picked one, unless another clearly wins more.88% of games · 88% of mains88%BaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.+0.2% ±2.3vs Voltaic CycloswordFirst 10 min +0.1%Rest of game +0.2%vs expected +0.3%±1.1
Voltaic Cyclosword4% of games · 3% of mains3%Unclear−0.2% ±2.3same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −11.8% ±19.7First 10 min −0.1%Rest of game −0.2%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
The Collector3% of games · 4% of mains4%Unclear−0.8% ±2.4same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −0.1% ±18.8First 10 min −0.6%Rest of game 0.0%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Infinity Edge1% of games · 0% of mains0%Unclear−0.2% ±2.4First 10 min −0.5%Rest of game +0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Terminus is the most picked. The others are compared with it. Nashor's Tooth is the next most picked. The Baseline row compares the two. The Mains column is the share of mains’ games. Verdicts stay everyone’s until mains have 1,500 games.
TerminusOur pickOur pickThe option shown in What wins most often: the most picked one, unless another clearly wins more.46% of games · 50% of mains50%BaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.+0.7% ±1.6vs Nashor's ToothFirst 10 min +0.5%Rest of game +0.3%vs expected −1.1%±1.7
Nashor's Tooth33% of games · 27% of mains27%Unclear−0.7% ±1.6same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +3.4% ±6.8First 10 min −0.5%Rest of game −0.3%vs expected −2.5%±2.0
Phantom Dancer3% of games · 5% of mains5%Unclear+0.1% ±2.3same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. 0.0% ±21.4First 10 min +0.4%Rest of game −0.3%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Runaan's Hurricane3% of games · 4% of mains4%Unclear−0.2% ±2.3same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −9.7% ±16.4First 10 min −0.3%Rest of game +0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Zhonya's Hourglass2% of games · 0% of mains0%Unclear−0.8% ±2.4First 10 min −0.4%Rest of game −0.4%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Dusk and Dawn2% of games · 0% of mains0%Unclear+0.6% ±2.4First 10 min +0.2%Rest of game +0.3%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Luden's Echo2% of games · 0% of mains0%Unclear−0.4% ±2.4First 10 min −0.1%Rest of game −0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Fiendhunter Bolts1% of games · 2% of mains2%Unclear−1.0% ±2.4same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −13.7% ±21.4First 10 min −0.5%Rest of game −0.4%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Infinity Edge1% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Guinsoo's Rageblade1% of games · 0% of mains0%Unclear−0.2% ±2.4First 10 min +0.3%Rest of game −0.5%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Voltaic Cyclosword1% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Zhonya's Hourglass is the most picked. The others are compared with it. Terminus is the next most picked. The Baseline row compares the two. The Mains column is the share of mains’ games. Verdicts stay everyone’s until mains have 1,500 games.
Zhonya's HourglassOur pickOur pickThe option shown in What wins most often: the most picked one, unless another clearly wins more.44% of games · 38% of mains38%BaselineBaselineThe most picked option. The others are compared with it. Its own number compares it with the next most picked.−0.8% ±2.2vs TerminusFirst 10 min −0.8%Rest of game −0.1%vs expected −7.1%±2.2Terminus8% of games · 7% of mains7%Unclear+0.8% ±2.2same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +9.4% ±13.3First 10 min +0.8%Rest of game +0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Phantom Dancer7% of games · 9% of mains9%Unclear+1.0% ±2.2same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +0.7% ±16.4First 10 min +0.5%Rest of game +0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Nashor's Tooth7% of games · 7% of mains7%Unclear+0.8% ±2.3same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +15.0% ±19.3First 10 min +0.6%Rest of game +0.2%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Infinity Edge5% of games · 7% of mains7%Unclear0.0% ±2.3same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −0.8% ±31.2First 10 min −0.4%Rest of game −0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Shadowflame4% of games · 5% of mains5%Unclear+0.1% ±2.3same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. −21.6% ±33.5First 10 min +0.1%Rest of game −0.3%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Runaan's Hurricane3% of games · 5% of mains5%Unclear+0.6% ±2.4same players onlySame playersThe same comparison among players who used both options. Each player is compared with themselves. +15.7% ±21.9First 10 min +0.5%Rest of game 0.0%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Lord Dominik's Regards3% of games · 0% of mains0%Unclear+0.3% ±2.4First 10 min +0.2%Rest of game +0.1%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Jak'Sho, The Protean2% of games · 4% of mains4%Unclear+0.1% ±2.4First 10 min +0.1%Rest of game −0.2%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Rabadon's Deathcap2% of games · 0% of mains0%Unclear+0.5% ±2.3First 10 min +0.3%Rest of game 0.0%vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Dusk and Dawn2% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Wit's End1% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Bloodthirster1% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Guardian Angel1% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.
Mortal Reminder1% of games · 0% of mains0%Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.··vs expected Not enough gamesNot enough gamesToo few games to say anything yet. The number shows once more games come in.Everyone or mains
Mains are players whose #1 mastery champion is this one. We know the mastery of 717,000 ranked players from Platinum to Challenger. That covers about half the players in our games. Below 1,500 games by mains, the mains view shows what they pick next to everyone’s verdicts. From 1,500 games on, every number is the mains’ own.
WPA (win probability added)
On the pages it’s labelled “vs expected”. It compares how games with the option ended with the win chance they had when it was chosen (the draft for runes and spells, the minute of purchase for items). +1.0% is about one more win per 100 games than expected. The comparison is with what players usually do from there. It can’t compare two options with each other. Because popular options make up most of what “usual” is, it understates them. Options that strong players favor also look better here than they are. Use it as a hint and let the main number decide the verdict.
Win chance against the most picked
This is how much more each option wins than the most picked one, in points of win chance. The games compared have the same draft odds or game state, the same patch and the same player experience. Numbers from few games are then pulled toward what the same option does on other champions. A number from 300 games keeps little of its size. With thousands of games, most of it stays.
Better, worse, even, unclear
The verdict reads the number after the pull and its 95% margin (±). Better or Worse needs the whole margin on one side of zero and a difference of at least half a point. Even means we know the two are within a point of each other. When it could go either way, the verdict is Unclear. Not enough games means too few players tried both, or the number is mostly the pull.
Lane, mid and late game
The difference is split by when the win chance moved: lane (0–14 min), mid game (14–25) and late game (25 to the end). The three add up to the whole game. They show when an option pays off or costs you.
After the purchase
An item counts only from the minute it’s finished. Its numbers cover the 10 minutes after the purchase and the rest of the game. What happened before the purchase explains why the item was bought. Those minutes don’t count toward the item.
Not enough games
There are too few games to say anything yet. The margin would be wider than ±5%, or the number would be too noisy to say anything. The number appears once more games narrow the margin.
What the data says
We run seven checks on every champion. Two flag common picks that cost win chance and results carried by one player. The others catch theory that real games don’t back, answers that change with your build, keystone gaps that go with the build, options that pay off in only one phase, and lanes that turn after minute 14.
Pays off in one phase
This option’s whole-game number hides what happens in one phase. For example, it may win lane and lose that edge later, or pay off late. The number for that phase moves at least 1%.
