Most mustaches won't help you fight or mate. These mustaches do both.
Generally speaking, toads and other amphibians are pretty peaceful. Except for Battletoads. They're brutal. When they do fight, it's pretty much just for show. That's what makes Emei mustache toads unique. They actually fight. That, and the fact that they have mustaches which are what they fight with. My mustache feels so useless right now.