Buy cards at low prices and sell at high. Be a successful businessman.
Buy sell All type of cards!

Card Master is a super fun simulation game where you trade so many different types of cards!

Make sure to Analyze cards that you receive from your customers before paying them or adding them to your inventory. Use Magnifier and Watch out carefully if the cards are scratch free and always make use to use the torch for good lighting to check you are not buying any fake cards.

Buy cheap and sell them at high prices. Or be generous and give your customers price they are asking. You own your business.