So i am gone for a very long time and I started playing Stick War 2 again but i forgot what kind of strategic build should i do

Any strategies here please feel free to share currently my build is Miner/Miner Wall/Miner/Swordsman (swordwraith)

This should help you : http://forums.stickpage.com/showthread.php?90543-For-all-the-newbies-out-there-How2Play-Simple-Order-Play-Guide

There are many builds you can do, but the one above is probably the best for getting a good grasp of the game. As you play longer you can mess around and find a strategy that suits you best.