I played spellslingers and espers.. i like them both. I wanted to try them to help me figure out what kind of team i will make ( healers ).. i might end up with a mixed group.. but Tank and 4 SSs or Espers might work good. At 15 SS get an ability that does dos to mobs in the telegraph and heals players in it.. so one button to do both is great.. in theory. I will level them more next time.