I understand you're asking for a prayer related to the "Medallion of Orion." However, there's no known religious or spiritual tradition that uses this term or has a specific prayer associated with it. It's possible you're thinking of a fictional concept from a book, movie, or game.

If you could provide more context about where you encountered this term, I might be able to help you create a prayer that resonates with your intention.

For example, if you're thinking about the Orion constellation and its celestial significance, we could explore a prayer for guidance, inspiration, or understanding.

Please give me more information so I can assist you better!