card magics

Hey everybody! First of all: Hi, im Lucas from germany and i began my card magic journey about 6 or 7 months ago. Its nice to meet all of you. Before i explane the title of zhis thread i need to tell you, that im nearly blind. I can still see a little bit but im more on the richard turner side...

I always have a question in mind that why the card magicians always prefer to use black cards for magics. what is the secret behind it??