Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Here, This is my Tryndamere build that i have been using since the new patch.
With all the increased crit chance for health lost ive tried to go a little extra damage instead of all that "avarice blade stacking".
-X2 HP potions
Mainly you want to farm this section of the game only go for the gank if your teamate pulls em in or initiates or you think you can get lucky with your crit and hes low.
Farm until you get enough for 2 avarices and your boots of speed
Items you want before midgame ends
By now just keep on farming and help out in team fights when you are needed or can contribute, you have Undying rage by now. dont use it to further pursue someone in a gank use it to get a couple of extra hits in and run away.
Time for your items
-Infinity Edge (After this its gonna take more than one to kill ya)
-Phantom or Bloodthirster depending on how the game is going ( if theres more dps get phantom, get bloodthirster first if they have heroes with hp that cant do much to you)