Diversification is key to a healthy collection
The damage is easily felt by touch and alters the cards shape, making it noticeable in a deck and no longer valid for tournament play
So far the only set I have come across where there are long repeated sequences on a commons sheet and there is more than one possible reconstruction is Gym Challenge
Since the first original printing of this card was only given to the winners of that specific tournament (and theres only about 75 or so floating around), its easy to see why the Magikarp Tamamushi promo card is worth anywhere from $15,000 to $20,000 today
Others are highly situational, being "tech'd" in to beat a certain deck, or outright useless in most matchups
The set includes 60 cards in total, with a focus on Arceus and other Legendary Pokemon