After you master 2 Elements, choose a Specialty mage class. Like Necromancy
Rare Metal tools that Upgrade the more you use them. Shift-Right click to see progress.
Plenty of new Workbenches, a new Tool set, Scrolls, and more.
Find or Craft a bunch of new things.
Enter the Mage Village and take Quests from NPCs
Kill hostile mobs to earn XP, gain levels and upgrade your spells and stats. Lots of grinding.
Explore the world to find crypts above and below the ground.