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.
The stats shown on this page feature some significant Tryndamere against Naafiri counter stats that can help you appreciate the differences between the pair. For instance, Tryndamere’s KDA ratio ([kills + assists] / deaths) of NaN is better than Naafiri’s KDA ratio of NaN, indicating that Tryndamere may be more central to his team's team fighting capability than Naafiri..
Tryndamere often has a slightly smaller longest kill spree than his foe does. On average, he takes more damage than Naafiri. This is usually reflective of differing health capacities; however, it can also show that the one champ has less agility and thus is not able to flee from further damage when engaged or poked.
Both League champs are great champions. Both champs have their pros and cons. In League's current meta, Tryndamere usually fairs equally well when playing against Naafiri, with a 50.9% win rate. Thus, Tryndamere makes an ok counter for Naafiri.
While Tryndamere does have a higher winrate compared to Naafiri, when they face off with one another, Tryndamere also has a much greater difficulty level that makes him a more difficult character to develop with. You still need to be cautious when picking Tryndamere into Naafiri.
Moreover, Tryndamere has almost no amount of utility and CC, a similar amount to Naafiri. This makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there isn't one best champion overall in League of Legends, in Tryndamere vs Naafiri matchups, Tryndamere is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your allied champions during late stage team fights.
Tryndamere is a decent counter for Naafiri. You will do well by focussing your strategy on keeping up your CS and taking out objectives. If you can do that, you should do very well as Tryndamere against Naafiri.
To truly master Tryndamere in order to counter Naafiri during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra lessons on this matchup. If you pay attention to the build and stats presented above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Tryndamere typically accumulates a similar amount of CS as Naafiri. Champions who on average don't earn much CS often don't need much CS to be valuable teammates, such as support champions. They are capable of scaling well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically need a lot of items to be effective. In either situation, try to do better than the numbers displayed here to do well.
The ideal items to focus on in your Tryndamere versus Naafiri build consist of Phantom Dancer, Kraken Slayer, and Navori Quickblades. When Tryndamere incorporated at least these three items in his build, he performed significantly better when facing Naafiri than with many other common item sets. In fact, Tryndamere had an average win rate of 50.9% when playing against Naafiri with this build.
To have the greatest likelihood of vanquishing Naafiri as Tryndamere, you should equip the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Second Wind, and Unflinching runes from the Precision and Resolve rune sets. Out of all the rune combinations players used for Tryndamere vs Naafiri face-offs, this combo of runes resulted in the highest win rate. Moreover, these runes gave a 50.9% win rate overall.
By default, tips, statistics, and builds on how to beat Naafiri as Tryndamere are given for all skill levels, merged. To narrow the stats and builds to a specific player tier, you should use the selection menu located at the top of this page.