For this build i dont a really long description!
Play Def and fight the minions dont aggresiv to LvL6.with nuker on a lane is that **** but
Wait on minion masses and fight then with Empower
Late to End Game:
With 2 phantomdancer is your dogde really high and crit strikes also.All 3 attacks with crit deals **** high damage with empower and high helth is jax unstoppable!!!
Teemo,Heimerdinger(blind)Sion,Taric(stun for 2 sec)Rammus(With thornmale really tough)
And Have Fun with jax :D