Delaying the activation of Undying Rage is a very effective way to make an enemy champion over-commit to trying to kill you.
If the enemy is stacking Armor, try building items like Last Whisper or Youmuu's Ghostblade.
Bloodlust is an excellent way to heal Tryndamere. Try not to let it fade off before you activate it.
Kai'Sa is very vulnerable to getting outranged by mages and long range carries.
Make sure to place wards in your blind spots so you can see Kai'Sa coming.
Kai'Sa is very good at picking off isolated enemies. Stick together against her.
The stat comparisons shown on this page clarify some vital Tryndamere vs. Kai'Sa matchup statistics that may help us distinguish the differences and similarities between these two champs. As an example, Tryndamere’s KDA ratio ([kills + assists] / deaths) of NaN is more than Kai'Sa’s ratio of NaN, showing that Tryndamere may be more central to his team's team fighting capability than Kai'Sa..
Tryndamere often has a similar longest killing spree as his counter does. Typically, he takes more damage than Kai'Sa. This is usually reflective of different amounts of tankyness, but it can also show that the one champion has less mobility and thus is unable to escape further damage when poked or engaged.
Both LoL champs are great champions. Both have their pros and cons. In the game's current meta, Tryndamere usually wins when playing against Kai'Sa, with a 52.2% win rate. Thus, Tryndamere makes a good counter to Kai'Sa.
While Tryndamere does have a higher win rate compared to Kai'Sa, when facing one another, Tryndamere also has a lower difficulty level that makes him a less difficult character to learn and master. You should be be fine when picking Tryndamere into Kai'Sa.
Furthermore, Tryndamere has almost no amount of CC and other utility, a similar amount to Kai'Sa. This makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there isn't one best champion for every situation in League of Legends, in Tryndamere vs Kai'Sa matchups, Tryndamere is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your team members during late stage team fights.
Tryndamere is an above average counter to Kai'Sa. Focus your strategy on keeping up your CS and taking out objectives. If you can do that, you should do very well as Tryndamere against Kai'Sa.
If you would like to truly master Tryndamere in order to counter Kai'Sa during both the early game and mid / late game phases of League of Legends, you should keep reading to pick up a few extra tips and tricks for this matchup. If you mind the build and stats shown above, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Tryndamere on average accumulates a similar amount of CS compared to Kai'Sa. Champs who on average don't get many minion kills usualy don't have to have much CS to be effective, such as supports. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often need many items to be effective. In either case, try to exceed the numbers shown on this page to do well.
The most important items to focus on in your Tryndamere versus Kai'Sa build include Infinity Edge, Statikk Shiv, and Blade of The Ruined King. When Tryndamere combined at least these three items in his build, he performed much better when fighting Kai'Sa than with most other common item sets. In fact, Tryndamere had an average winrate of 52.2% when playing against Kai'Sa with this counter build.
To have the highest probability of annihilating Kai'Sa as Tryndamere, you should use the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Unflinching, and Second Wind runes from the Precision and Resolve rune sets. Out of all the rune combinations players chose for Tryndamere vs Kai'Sa clashes, this mixture of runes yielded the highest win rate. In fact, these runes gave a 52.2% winrate overall.
By default, tips, stats, and builds on how to beat Kai'Sa as Tryndamere are shown for every ranked division. To scope the statistics and builds to a distinct division, you may use the selection menu located above.