Need someone to powerlevel me

I lost my characters that I had on 360 because my hard drive got corrupted. All I have now is a level 10 Assassin and Id like to power level a Mechromancer. If someone could help me out it would be greatly appreciated. Once I have a level 72 I will return the favor if you want. My gamertag is Reaper Hg

Borderlands 2 not Pre-Sequel