The difference between costing three and costing two is a lot
The main benefit to this is to make all the other utility creatures you have into your chosen creature type to benefit from all the synergies, but with so few non-zombies, it's worthless
but the hastily pasted errata makes sure that, no, you can't get your opponent to buy the most expensive cocktail in the nearby restaurant through a card game
The cards' concept was that they essentially used energy to change the color of a spell being cast or a permanent in play with the concept being that players could do something like playing Thoughtlace on an opponent's spell to turn it blue so they can counter it with a Red Elemental Blast, or do a surprise change of color to a permanent for "protection from" purposes
Usually, fake cards, especially foils, can feel very slippery and soft, while regular cards have a texture thats hard to reproduce by regular means