Now, why the hullabaloo, you ask
Whats unfair is the variety of cards it shows up with that cheat it into play: Show and Tell, Sneak Attack, Shallow Grave, and so on
Not only are these often useful when playing the game, but pulling one of the rarest cards can be fun on its own, with beautiful artwork to further distinguish them
Thus, his Manga Rare card is definitely one that collectors craveif they can get their hands on it due to its limited print run
A good rule of thumb across card collecting markets would be to expect roughly 30 to 40% increased value for identical cards
Although the damage counter dealt by this attack is little, landing only 30 damage to the opponent, it allows the player to attach one dark energy to any of his/her benched pokemon from the discard pile