So I decided I wanted to make a build for tryndamere because i couldn't find one that I thought was very good. So without further ado I give you my Tryndamere guide. Enjoy.

For runes I did all crit chance, with a full build plus tryndamere's passive his base crit chance is 40% this will make stacking bloodlust extremely easy.

damage, attack speed, and crit masteries will really help early game. With this crit chance is base 45%.

starting with the vampiric scepter will mean not having to buy potions and still allow laning for long periods early game.
The beserker greaves boost attack speed further increasing dps.
next the stark's fervor will supply more attack speed and survivability through lifeleech.
A rageblade increases damage, ap, and attack speed, this means spinning sash deals more damage and bloodlust healing will heal more damage per stack.
Phantom Dancers will mean that nobody can outrun you and make your crit 70%
A bloodthirster will mean not ever having to recall allowing you to tank your heart out
Finally the infinity edge will raise your crit to about 90% making you basically unstoppable.

tips for this guide:
-try to avoid fighting champs until you have stark's fervor
-better safe than sorry, if you think you night die it is better to waste your ult than to die
-tryndamere can be very powerful, but he has limits don't enter fights you can't win
-once you have your bloodthirster(if the game has gone on that long) get it to full power and you should be able to solo kill the baron!
-when using bloodlust to heal try to have full stacks on your rageblade this will optomize the healing effect healing about 180hp per stack