Sage for boring leveling go 99 int, 99 dex and get Heaven's Drive or Thunderstorm. Have fun mobbing on Rach Sanc 1 for a lifetime after you get to 80 from lightning bolting siromas. You may get lucky and get invited on a necromancer run in Abbey 3, but people taking sages is rare.
Get your int to 70-80 total first and then pump dex till about 60-75 then pump more int till you get a nice total of like 100, then get dex maxed, max out int. About it.
Prof is a whole nother ball game of playing but that's for later if you need to ask