When Rek'Sai is near, she can see the position of you and your allies, but only if you're moving.
If you see one of Rek'Sai's tunnels, briefly stand on one of the entrances to destroy it.
Rek'Sai's Furious Bite gains damage as she builds Fury. Be very careful around her when her Fury is full.
The stat comparisons provided here show some valuable Samira vs. Rek'Sai counter stats that may help us explain the differences between these two champions. Samira’s KDA ratio ([kills + assists] / deaths) of NaN is more than Rek'Sai’s KDA ratio of NaN, indicating that Samira may be more central to her team's team fighting capability than Rek'Sai..
Samira usually has a slightly larger longest kill spree than her opponent does. Typically, she receives less damage than Rek'Sai. This typically indicates different amounts of tankyness, yet it can also show that the one champ has less agility and thus is not able to kite away from further damage when poked or engaged.
Both League champions are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Samira usually loses when facing off against Rek'Sai, with a 48.4% win rate. Thus, Samira makes a poor counter to Rek'Sai.
While Samira does have a lower winrate compared to Rek'Sai, when they face off with one another, Samira also has a much greater difficulty level that makes her a more complex champ to pick up and master. You still need to be cautious when picking Samira into Rek'Sai.
Additionally, Samira has almost no amount of utility and CC, a similar amount to Rek'Sai. This makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Samira vs Rek'Sai matchups, Rek'Sai is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your teammates during team fights.
Samira is a somewhat poor counter to Rek'Sai. You will do well by focussing your tactics on keeping up your gold and cs and clearing objectives. If you are able to do that, you should be able to stand on your own as Samira against Rek'Sai.
If you would like to truly master Samira to counter Rek'Sai during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you listen to the build and tips presented above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Samira most often racks up much more CS compared to Rek'Sai. Champs who on average don't get many minion kills often don't require much CS to be effective, such as supports. They are able to scale well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically need several high cost items to be effective. In either situation, try to exceed the numbers shown here to do well.
The best items to prioritize in your Samira versus Rek'Sai build consist of Lord Dominik's Regards, Bloodthirster, and The Collector. When Samira included at least these three pieces in her build, she performed a lot better countering Rek'Sai than with most other commonly used builds. In fact, Samira had an average winrate of 48.4% when countering Rek'Sai with this counter build.
To have the greatest probability of annihilating Rek'Sai as Samira, Samira players should use the Conqueror, Triumph, Legend: Bloodline, Last Stand, Bone Plating, and Revitalize runes from the Precision and Resolve rune sets. Out of all the rune combinations we have analyed for Samira vs Rek'Sai LoL games, this order of runes yielded the highest win rate. Moreover, these runes averaged a 48.4% win rate overall.
If you want to see Samira x Rek'Sai tips and matchup stats and build suggestions for a a distinct rank, feel free to choose one from the selection menu displayed above. By default, the statistics and guides given are calculated using all rounds played with these champs.