Hand-painted cards are unique works of art that are hand-painted and signed on a small card (usually 6.35cm×8.89cm). These are also called ACEO (Artist Card) or ATC (Art Trading Card).
Many artists provide PSC (personal hand-drawn cards printed on the back of their own inventory, or just printed on a cutting card), but the most popular hand-drawn cards are the trading card sets commissioned by the company.