Quote Originally Posted by Swagsire View Post
Question the first. I use basic energy that are old all the time. It's a reprint, and is therefore the exact same card.

Question the second. Pokegym has the legal modified card list. Which doesn't appear to list the old card as even legal..Qwaa
Correct. All Basic Energy from any set (not including ones from Worlds decks obviously ) are just fine to use.

As for Pokemon Center. Pokemon R&D have made a special case for that card and that they count as different cards.