Its attack, Darkness Claw , deals 80 damage and forces your opponent to reveal their entire hand
Flavor-wise, you probably shouldnt be able to do this on the Spider token itself, but from a playability perspective, this makes Origin of Spider-Man a great two-drop at least for Standard
Sozin used it in his campaign of conquest, leading to the destruction of the Air Nomads, and a century later Fire Lord Ozai attempted to do the same
until the end of this turn, its effects are negated, its ATK/DEF become 100, also it is unaffected by your opponent's card effects
On top of that, it can be broken with certain cards that also phase out permanents
The error, attributed on the CGC Trading Card certification label, greatly increases desirability among collectors