what are shadowless pokemon cards Does Mean in Cards? What are shadowless Pokémon cards?

This often means that nowadays, the most powerful cards for non-rotating formats are printed in a supplemental set (rather than in Standard)

The only reason to do that to players in a casual format in a casual game is to get off on the power-trip of curb stomping people

They are balanced so that you'd get a large fraction of a card's worth of strength from the enters-the-battlefield effect on the front but would need to flip them for more than the average strength of a card

What you are not seeing is that every time a new seller lists a Moat at a price near the Market Price, it sells, leaving behind cards with listed prices far above what the card will sell for