Born from the Thunderbird's lightning striking ancient petroglyphs depicting bull spirits, the Mesa Minotaur emerged as a fusion of primal earth energy and legendary strength. As the Great Plains' rock formations grew more complex under the Thunderbird's influence, this powerful being became their natural guardian, using its intimate knowledge of the stone labyrinths to protect the sacred chambers within.

Possesses supernatural strength that allows it to shape and move stone at will, creating and sealing passages through the mesa formations. Its connection to the earth grants it the ability to sense vibrations through rock, detecting both intruders and hidden chambers. The Mesa Minotaur can merge with stone surfaces, becoming one with the rock faces it protects, only to emerge when challenges arise.

Serves as both guardian and guide through the complex network of canyons and caves within the Great Plains' mesa formations, testing the worth of those who seek the Thunderbird's earth-bound secrets. Only those who demonstrate both physical prowess and respect for the ancient ways are granted passage to the sacred chambers under its protection.