Keeping tunnels spread out across the map will ensure you have choices when you want to cast Void Rush.
Cast Burrow before travelling around the map to take advantage of the increased Move Speed and the safety provided by Tremor Sense.
Tremor Sense can warn you of enemies closing in, and is particularly useful when entering enemy territory.
Deny Vayne the opportunity to pin you against walls.
Vayne is fragile - turn the pressure up on her and she will be forced to play cautiously.
The stat comparisons shown on this page emphasize some critical Rek'Sai against Vayne matchup stats that may help you figure out the differences and similarities between the pair. As an example, Rek'Sai’s KDA ratio ([kills + assists] / deaths) of NaN is more than Vayne’s KDA ratio of NaN, showing that Rek'Sai may be more central to his team's team fighting capacity than Vayne..
Rek'Sai normally has a similar longest killing spree as his enemy does. Typically, he receives more damage than Vayne. This is usually reflective of different amounts of tankyness, yet it can also hint that the one champ has less mobility and thus is not able to escape additional harm when poked or engaged.
Both League champs are great. Both champs have their pros and cons. In League's current meta, Rek'Sai usually loses when taking on Vayne, with a 47.4% win rate. Therefore, Rek'Sai makes a bad counter to Vayne.
While Rek'Sai does have a lower winrate than Vayne, when on opposite teams, Rek'Sai also has a much lower learning curve that makes him a less complex champion to develop with. You should expect to face a difficult match when picking Rek'Sai into Vayne.
Moreover, Rek'Sai has some amount of CC and other utility, a similar amount to Vayne. This often makes her just as valuable during team fights, especially when facing champions with a lot of burst damage.
While there isn't a single best champion overall in League of Legends, in Rek'Sai vs Vayne matchups, Vayne is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your teammates during teamfights.
Rek'Sai is a bad counter to Vayne. Focus your actions on increasing your gold income and destroying objectives. If you do that, you should hold your own as Rek'Sai against Vayne.
To truly master Rek'Sai to counter Vayne during both the laning and mid / late game phases of League of Legends, you should keep reading to pick up a few extra tricks and insights into this matchup. If you mind the build and suggestions shown above, you will increase your win rate significantly and be closer to League of Legends pro players.
Rek'Sai often gets a lot less CS relative to Vayne. Champions who typically don't acquire much CS typically don't require much CS to be valuable teammates, such as supports. They are able to scale well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically need several high cost items to be effective. In either case, try to exceed the values shown here to do well.
The most crucial items to prioritize in your Rek'Sai versus Vayne build include Black Cleaver, Youmuu's Ghostblade, and Titanic Hydra. When Rek'Sai used at least these three pieces in his build, he did much better versus Vayne than with many other common builds. In fact, Rek'Sai had an average win rate of 47.4% when countering Vayne with this build.
To have the greatest likelihood of vanquishing Vayne as Rek'Sai, you should equip the Conqueror, Triumph, Legend: Alacrity, Coup de Grace, Magical Footwear, and Cosmic Insight runes from the Precision and Inspiration rune sets. Of all the runes players picked for Rek'Sai vs Vayne counters, this combo of runes yielded the highest win rate. Moreover, these runes averaged a 47.4% win rate overall.
By default, tips, stats, and builds on how to beat Vayne as Rek'Sai are shown for all skill levels combined. To scope the statistics and builds to a specific player tier, you should use the selection menu earlier in the counter matchup guide.