When you get to level 50ish, things sure do get interesting. You have the Celestia gear at level 55 and the Grizzleheim gear at level 56. Which is better Celestia or Grizzleheim? I really think that Celestia gear is seriously underrated. A lot of wizards don't bother crafting the Celestia gear and just jump right to their Sudrilund Set. It is hard to beat the item cards that you get from the Grizzleheim clothing but if you do often use your secondary school spells, don't rule out the Celestia Gear.
