Tryndamere is a champion that can get a lot of kills,and be a main carry in the team.He also has very high amount of survivability.In this build you will learn a way of playing with him.

Pros:Killing machine
Survivability(if you know how to play)
Many kills

Cons:Weak until LVL6
Bad against CC champions

Best summoners are:1.Exhaust,2.Heal,3.Ignite,4.Ghost,5.Cleanse,6.Flash

So the items are listed above,if you are full with items sell aravice blade and buy another phantom dancer or last whisper,if you like instead of stark's fevor you can take bloodthirster i prefer starks fevor because of the attack speed.

Early game:Until lvl 6. be more careful beacouse you can die easily.
Use spinning slash for faster movement and going trough walls
Get blothust higest as possible for healing,mocking shout is very imortant CC when enemies are running away and it weakens attack of enemies.You will get a lot of kills and deaths in this point of the game

Mid game:You are now awsome,use your ulti for tower diving and killing enemies,after the ulti ends use your heal and bloodthust to survie.You will be an awsome killing machine with a lot of kills and little deaths beacouse of your survial:ulti,heal,and faster moving trugh walls spinning slash.And youl have an awsome critial damage to kill as crazy

Late game:You are a feeded killing machine,LEGENDARY!!!Nobody can stop you now

If you want to jungle with trynda go on lifesteal and bloodthust first to max.Its not hard.You will never die,You have imortal ulti just in case ;)

You have a CC and you kill as crazy,what else does a team need?Use CC(Mocking shout) and spinnig slah for chases,and ulti for being imortal.Trynda is very useful in Team fights