*checks wiki for list of crests*
*did not find any*
*checks for definition of coat of arms*

Unless you mean to use another type of heraldic crest, I will approve the game and wish you the best of luck with this flavor.
…
Actually, surprise me. I don’t mind if it’s a crest from a [non-Wikipedia source] (e.g., game fandom) as long as it follows the site’s guidelines.