1. Im a fire main, but all classes have there pro's and cons. If you like PVP you should try either lightning or Fire. Lightning can single a target out easily and Fire has a lot of control combined with awesome damage. Also as a Fire main im always in the top of the 9 tails rankings.

2. Buy Jonin, its worth it if you plan on playing this game a lot. You can buy ingots when there are recharge events. We have an event like this right now, or if you are in a new server you have one anyway. If you're in a new server you should definitely try to get your hands on Iruka. He is really good and you will use him a lot.