Darkrai Prism Star and Giratina Prism Star are easily the poorest cards of the 6, both Pokemon are similar, with their Ability allowing you to move two Darkness or Psychic Energy from your hand to that specific Pokemon when it is put onto the Bench
They are unsuitable for collectors as these cards have a unique back design and are not tournament-legal
[Trigger] Draw 1 card, look at up to 1 card from the top of your opponent's Life cards, and place it at the top or bottom of the Life cards
However, some cards work best when specific other cards are in the discard pile, and Ethan's Typhlosion is one of the most unique cards of this variety
I know every market is different
And since you likely mulled to at least five cards if not lower, as a mull to two in this deck is basically the same as keeping 7 cards, you should be behind your opponent in the decking game too