if you get gravitational aspect, that alone enables a basic but strong version of ball lightning
after campaign your main goals should be to:
* do capstone dungeon in kyovashad to access wt3
* level up enough so you can do the next capstone dungeon maybe at 65-70 to access wt4
while in wt3 or wt4, do legions/helltide/vampire zone/world boss when you see them up
alternatively mix in some nightmare dungeons, but I leave those for last typically