Thank you for your kind words! Really excited about 4.0 patch. It going to be a good one.
I fixed the gems and crystals, but completely forgot about the runes. Basically adding % to Attributes, Health or Mana increases it by that much but unequipping it removes the % but the difference boost % stays and that is what is causing the exponential addition. Will get that fixed.
I'll get Wyndian shops fixed.