Dorans for safety
Long Sword for extra damage and faster 1st item spike
Cull for Scaling
Tryndamere's Skill Max Order: Q → E → W
Build Advice: Rush Berserker boots in this matchup because movement speed is a direct counter to Tryndamere.
Matchup Advice: Use E specifically to cancel Tryndamere's spin, and only use E for this.
Level 1: When Tryndamere spins on you, save E to cancel his E spin. When you do this, you can run him down with auto attacks. His E is the same cooldown as your E.
Level 2: Tryndamere will heal a lot in the lane, so try to be aggressive so he doens't get much healing. Slow pushing + zoning him off the wave is ideal so that he can't get his crit passive stacked from the wave.
Level 3: His W is useless because you have Phase Rush. Your goal pre-6 is to kill tryndamere because the matchup is unplayable for him. Auto him whenver he gets in range, and when he spins on you, save E specifically to counter his E spin.
Level 6: When he engages post 6, you must E-AA-AA to proc phase rush, and then Q him to buy some time after your phase rush is proced. You now have more MS than him and he's blinded, so you can change directions in the nearsight to stall some time.
Trynd will go Q max and likely fleet most games into you, and if he does, he will legit have perma sustain early on so you don't have much kill pressure unfortunately.
Important to note that Quinn's vault in fact cancel's Trynd's spin, so legit just save your E every time to cancel his spin.
Phase rush and boots rush are important to always outrun tryndamere.
Constantly punish him with auto attacks and Qs, and save E always to counter his E. By doing this, he can't play the game.
Post 6, if he Es you, he needs flash to even come close, both PR with boots and nimbus cloak effect on ignite makes you faster than him, always. He can't ever out run you.
If you go galeforce, use this dash to help escape as well.