Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Oh yea... Justified is awful in ou, especially with Pursuit being pretty much the only dark move used there's no way you can utilize that Piece of Sh*t ability lol..
Honeslty, I got into it cos of a friend and youtube battles you can look the battles up and get a basic idea for it, also its lv 50 battles so u wont have to do as much however u still gotta do the same thing wit ur evs and sets