All Crit dmg runes.
Why?
If you have played tryndamere before you should know one thing. He is bad at the start of the game, but overpowered at the end of the game.

If you buy Full crit dmg runes, then you will be alot better at the end of the game. You will do 46% more crit dmg then if you had 0 runes.

Why should i not buy crit chance? Well because of the build i've made for you. A tryndamere is bad at the start of the game, so what? If you buy crit chance you will be better at the start but the crit chance is worthless at the end!!!!

You wonder why you shouldn't buy any boots at all?
Well i've played tryndamere since he came out. I figured out that you dont need boots IF! you start with Phantom Dancer. When you got the first Phantom Dancer you will get 368 Movement speed. Thats just about the normal movement speed when you got boots. With boots it should be around 400. But When you get you second Phantom Dancer you got more movement speed then those with boots.

So you might wonder how i escape from the other team? Well i use my spinning skill. (E) Mostly i go trough walls. But when you play on a lane you HAVE TO! be defendsive. Because if the other team attack you. You can not escape from them. So play defendsive!

1) Phantom Dancer.
Effects:
+55% Attack Speed
+30% Critical Strike
+15% Movement Speed
Recipe:
(1st) Cloak of Agility.
(2nd) Zeal.
(3rd) Dagger.


2) Infinity Egde.
Effects:
80 Attack Damage.
25% Critical Strike.
Passive UNIQUE:
Critical hits now deal 250% damage instead of 200%.
Recipe:
(1st) B. F. Sword.
(2nd) Pickaxe.
(3rd) Cloak of Agility.


3) Phantom Dancer.
Effects:
+55% Attack Speed
+30% Critical Strike
+15% Movement Speed
Recipe:
(1st) Cloak of Agility.
(2nd) Zeal.
(3rd) Dagger.


4) Stark's Fervor.
Effects:
20% Attack Speed
Passive UNIQUE: Gives nearby allied Champions 20% Life Steal.(1200 range)
Recipe:
(1st) Emblem of Valour.
(2nd) Recurve Bow.


5) Thornmail.
Effects:
100 Armor
Passive UNIQUE: On being hit by standard attacks, returns 30% of damage taken as magic damage. (A minimum 15 damage must be received).
Recipe:
(1st) Chain Vest.
(2nd) Cloth Armor.


6) Last Whisper.
Effects:
40 Attack Damage
Passive UNIQUE:
40% Armor Penetration
Recipe:
(1st) Pickaxe.
(2nd) Long Sword.

Go for the last hits. It give you money, but it also stack your bloodlust.(Q)

Exhaust and Ignite. (Flash isn't good for a Tryndamere because he got his spinning skill (E).