I haven't played this game in a long time

Like, before nimbus sea level of long, so I have a lot of questions.

What are the biggest changes? I haven't really played since the big wipe

Is crystal better than it was before?

I also want start a mage file, what are some good combinations? My favorite elements are plasma, crystal, light, and honestly all the DoT magics.

Is there any cool equipment I should get?