When you are designing a new mechanic for your set (or for your game in a general game-design sense), the first question you ask yourself is, "What is it?" You have to define the space it fills and figure out what role it plays in your design
They may look at if the printing is centered, if the corners are unbent, if theres damage to the edges, and if there are any visible creases in the image
In addition to the fact that the promotional card itself will usually be of notable value, packs and boxes associated with promotional cards tend to have more favorable pull rates
Second, collectors who submit Japanese cards to PSA tend to be more experienced and more careful with their handling, further increasing the likelihood of top grades
Enchanted cards are distinguished by their logo as well as being variants of the artwork that are more impressive
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