Dreamborn glimmers reflect asignificant change to a character that sets them apart from how they appeared in their original story. This change is a new expression of a glimmer's personality traits or goal. Dreamborn glimmers may have different outfits, take on new roles or titles, appear at different points in their life, or have new passions. Regardless of the change, dreamborn glimmers represent a development or transformation of the character's original appearance.
—Collector's Guide
Dreamborn Glimmers are the result of an Illumineer conjuring the character in their own style and preference, leading to the creation of a Glimmer reimagined from their classic selves. Depending on what the Illumineer interpreted these Glimmers as, the design of a Dreamborn can vary based on whatever aspects of that character was changed. For instance, many Dreamborns are created with the idea of what they would look like in a vastly different life or career if they made alternative choices. There are also Dreamborn who emphasize a particular skill or trait of that character and alter it, making it their main theme. Dreamborn can also be conjured in forms they could have had in their personal past or future if their full history has not been depicted in the original tale. For example, one can inkcast Tamatoa as a version of himself if he were still a small crab.[1]