Seven weeks ago, I did a spot he differences on the very popular card Tarmogoyf. Here are the six differences.
1. There is no copyright information.
2. The card number is incorrect.
3. The expansion symbol is a messed up symbol for Future Sight not Modern Masters.
4. The flavor text is not the same and has grammar errors.
5. He rules text does not match.
6. The toughness on the original Tarmogoyf is 1+X, but on mine it was X+1. So basically everything that could go wrong did. No one found all the differences, but I am sure that more people will next time.