It lets you create a token that's a copy of a creature you control of the relevant creature type
While Invasion of Regatha has some interesting uses, for the most part, there are other cards that do the same thing but better (Stoke the Flames for the front and Solphim, Mayhem Dominus or Urabrask for the back), which puts the battle in C-tier
Thieving Skydiver can easily steal an opponent's Stonecoil Serpent for a mere 3 mana, though you will still need to pay 1 mana for the kicker effect, even if Serpent Coil technically costs 0 mana
Due to the differences in the cutting process, the backs of JP prints almost always have a thin white border around the black border
Despite its simple nature, this Hitmonchan card was a popular dominating threat thanks to its cheap attacks
Plan for victory, or prepare for defeat