If heads, shuffle Masters Key into your deck." 2 1st Edition Shadowless Holographic Machamp This is another 1st edition, holographic card
Yea, I guess misaligned cards or misprinted text is more interesting for error collectors, whereas the corners could probably just be corrected with a careful cut (and some edge protection or something, Im sure it could get fancy)
Now, you can battle by taking on the Pokemon left to guard opposing Gyms, but battling a computer-controlled Pokemon in a 6 vs 1 fight just isnt the same as challenging your friend (or lifelong rival, grrr, curse you Kyle Anderson from the sixth grade!) to a competitive battle to see who trained the better Pokemon
by paying one Red mana, you can give that creature +1/+0 until the end of turn
These cards were all pretty pushed to help keep that theme front and center