Key chase cards include Mew ex #205, Mew ex #208, Mew ex #195, Charizard ex #201, Blastoise ex #202, enusaur ex #200
Many cards contain text that requires you to flip a coin to determine whether it's successful to give a sense of randomness and balance to specific moves, but almost every player uses a die instead of a coin
Looking for a graded copy
For one Fighting Energy you can dish out 130 damage and then swap it in with another of your Benched Pokemon
Sadly, because Plotted cards do need to wait a turn to be cast, this is likely the earliest you could get it out outside of eternal formats
To further cement their uniqueness, Wizards made each of them do very strange things, and gave them weird art