OP-10 introduced six new leaders: Trafalgar Law (Supernovas), Eustass Kid (Supernovas), Sugar (Donquixote Pirates), Usopp (Dressrosa), Smoker (Navy/Punk Hazard), and Caesar Clown (Punk Hazard)
(A specific price range was tricky to track down for this card as the price does seem to vary quite a bit.) To say the least, if you see it at a modest price you will want to nab it as this one is only increasing in worth over time
Yeah, someone had it all this time and just waited for the right moment
Decks that intend to use Magnezonea Stage 2 Pokmonto accelerate Energy in this way will find they need to run a higher-than-typical Energy count in order to consistently hit Energy off of Magnezones Giga Magnet ability, which further cripples such a decks consistency
Fake Pokmon cards were a problem back in 1999 and 2000 but they faded away when the popularity of the game faded
Probably worth noting that Mike Long is notorious for a history of cheating in high-stakes MTG events, so maybe Rootwater Thief was his comeuppance