In crafting, using a Regal Orb is a middle step when crafting a magic item with good affix(s) into a rare. If the affix added by the Regal Orb is desired, one can continue adding up to a total of six affixes through master crafting or the use of Exalted Orbs. If the affix is not desirable, an Orb of Annulment can be used to randomly remove an affix.

Converting a magic item to a rare is important for crafting in that a rare item has space for six affixes (three prefixes and three suffixes) while a magic item only has space for two affixes. The adding an affix is useful for improving Maps or Strongboxes, where additional affixes can yield additional results.