Because the background is black, your design choices behave differently.
White or light ink pops. A simple white logo or text on black creates high contrast. It is clean and legible. You do not need heavy fonts or large logos to be seen.
Colour behaves differently. Bright colours on black can appear more intense. However, because the paper is uncoated, the ink absorbs and dries matte. The colours will not look as vibrant or glossy as they would on coated Art Card. They look more muted and sophisticated.
Negative space is powerful. On a white card, empty space is white. On a black card, empty space is black. This allows for a design that feels spacious and calm, even with minimal elements.