B grade change mission

You need to complete the following tasks to advance to B grade (in this exact order):

  • Change your grade to C (see C grade change mission)
  • Gather enough XP for at least level 81, according to the number of Rebirths (Levels)
  • Gather 15 B Grade change Special Items by finishing he Game Arena on the winner side
  • Kill the Plague Lion Of Bellatrix Five