There was another type of card that was removed: Back in the old days, Magic included an ante rule as a way of playing for keeps. That's still an optional rule in casual play, but its strictly forbidden in Tournaments, so cards that involve the ante concept are banned in all formats
Non-signature versions look the same just without the signature
If you keep dropping creatures before you do the flip, the 2 life is already paid for in life gain
The most reliable platforms for a Pokmon card price guide lookup: TCGPlayer: The largest dedicated trading card marketplace in North America
You can use equipment to buff him and get value, and you can use cards like Angelic Exaltation and Sublime Archangel to set up for big swings
If the Jitte leaves the battlefield after the "+2/+2" mode is announced but before it resolves, the bonus when the ability resolves is given to the creature Umezawa's Jitte was attached to when it left the battlefield