On the other hand, seeing effects go from common to uncommon (like Doom Blade) is much more controversial, and while almost unheard of, having effects go from common to rare feels horrible because players end up thinking, "Only a few sets ago, I opened this card as a common, and now it's eating up the rare slot where I'm supposed to get an exciting / powerful / playable card?" This psychological feel-bad sums up the biggest problem with the aftermath cards: they simply aren't exciting because nearly all of them feel like commons that you'll open in your rare slot
Cards in mint condition will fetch a higher price than cards in poor condition
A foil-etched card is much more subtle, with only parts of the art and border shining in the light
This includes Persistent Petitioners itself on the turn it comes under your control
You can't activate this effect when digivolving a card in your breeding area
Every Pokemon card has a set symbol printed on it a small icon that identifies which expansion set the card belongs to