The Reality Mimic emerged when Dax Shardbinder experimented with fracturing solid objects into unstable, shifting forms during the Sigil Shard event. He discovered how to imbue terrain features with deceptive properties that could mimic other objects while maintaining their unstable nature, creating living embodiments of the Brotherhood's reality-warping capabilities that now wander the Mirage Zone.

Reality Mimics possess chameleonic properties that allow them to physically resemble various course features while maintaining an unstable, shifting composition. They can temporarily solidify into convincing duplicates of baskets, trees, or terrain before dissolving back into chaotic energy, with forms that flicker between states and respond to Brotherhood commands to maximize confusion among opponents.

Reality Mimics serve as active deception agents within the Mirage Zone, physically altering the playing field to create strategic advantages for the Brotherhood by transforming stable terrain into unpredictable, shifting obstacles that confound navigation and disrupt opponents' throws.