I tried to make this build an all around good build, not only for beginner games but also those pesky intermediate games or even PVP games where enemy champions might build armor to counter Tryndamere's high physical damage output.

For Tryndamere his runes are just to advance his already amazing features and give him some extra UMPH early on with the armor penetration and attack speed. Later in the game the extra armor penetration combined with the items listed will let him chew through any champion regardless of armor or not.

The summoner spells as many know are completely based upon personal preference. I like having the mobility of Teleport, letting me jump to where I'm needed most. Ghost is good for giving chase or running away. Exhaust is another good spell for Tryndamere, letting him go toe to toe with other AD champs better for the damage reduction and letting him escape and catch other champs better.

These masteries have been chosen to increase his damage and so that he gets a little defense along with the major offense boosts. Some of the points can be shifted around allowing you to get extra buffs for summoner spells if you like using other ones than Teleport and Ghost. That is all preference based.

The first skill I take is Spinning Slash, generally increasing his mobility in the early game, allowing some escape abilities, and of course being able to go through walls. Then the next I put a point in both the other skills so i have a heal and a slow early on, then i max out Bloodlust to make my heal as potent as possible early in the game. As I max out Bloodlust i put all my other points into Spinning Slash and when available Undying Rage. After everything else is maxxed out I finish up with Mocking Shout.

Pros
-Massive damage
-Self Heals
-High mobility
-Slow ability

Cons
-Very squishy until you get lifesteal