Everyone should be 5th level. And you will probably be sixth by the time of the last battle.
Proud Founder of the K.A.A.F. (Kill all Aasimar foundation) 3 minutes of your DM rolling a d6 normally means character death for you... My right hand is lightning and my left is thunder. My eyes are flame. My heart is ashes. Look upon me and tremble. Smoke me a kipper, I'll be back for breakfast.