Already is one
You can't apply for a black Mastercard directly but it's offered by Advanta and other than the name it's nothing prestigious at all. The credit limits are normal and the credit score you need to get it are average. The benefits aren't any different or better than any other credit card either. They are EXACTLY identical terms and rewards as almost every other Advanta small business credit card they offer. I think the whole invite thing about it is just to create false prestige and they are doing a bad job at it considering it's been around 3 years and offers no benefits over any of their other credit cards other than it being a black card.
Comparing other black credit cards to the Amex Centurion is like saying a black 92' Honda Civic is the same as an '09 black Rolls Royce because they're both the same color. They can call any card they want black and like Advanta black Mastercard they do for marketing! It's a total joke. I wish they would stop doing that!
There's no reason to apply for a black Mastercard or black Visa unless you are trying to get a worthless piece of plastic to maybe try to impress someone but it offers no benefits other than being a different color. Getting a black card, the real thing- Amex Centurion, requirements are spending hundreds of thousands and paying thousands in annual fees. If you want prestige and features stick with an Amex platinum