Thank you for the advice. I will surely work to get more experienceYou will likely receive a lot of responses telling you that the "Master Diver" recognition isn't worth worrying about. As you gain more experience diving, you'll appreciate why.
Rescue plus a lot of experience is arguably the most important combination. Take specialties if you're interested in the subject, not to chase the MD recognition.
To me, the card acts like a milestone or goal? Whichever the case, more diving = becoming a better diver. Cheers!