There should be "master classes", classes you can buy with a lot fame, which combine two classes, like wizard and archer, to create a magic archer or something. You should have to get lvl 20 in both those classes, though. You can use both of the 2 classes' abilities and equipment, like be able to equip a staff, OR a sword, or armor, OR a robe.
LOL, try putting you and all your workers to collecting. First, they stay still. When you smash the block with your head, they start running everywhere xD
Don't you just hate it when you customize a tank and at first you think it's super cool, but after you but it in the field, you want to customize again?