Your Temple Is Under Attack is a board protection spell, sure, but should also be used politically to sweeten a bargain
This caused part of the ink to stick to the back of the other sheet, causing not only Thick Grey stamps, but also the following variation: Black Back Imprinted stamp: Now were going from the front to the back of the card
1 Rare or Mythic Rare per pack
They can do significant, incidental damage to your opponent, and combo especially well with Bright-Palms ability to double +1/+1 counters
However, Clefairy is, if anything, an example of how any shadowless Base Set card can sell for surprising amounts, regardless of what's printed on it
People have often asked for an "unlimited collection subscription" to digital Magic, and this is pretty close