Thanks. That kind of error happens every few sets, with some sets being more likely to have it than others. It's when the image they put over the foil of the card is too thin.
Some people value them a bit more but a lot of people don't care.
You have the Japanese one, right? Japanese secret rares generally go for 50% more to double what the English ones are if they're 1st ed, and the same or slightly less than the English ones if unlimited.
There's a list of what sets are legal here.
Also note that any set or promos become legal 3 weeks after they're released.
That's the problem then. When checking ebay to see how much something is going for, only check the ones that have actually sold. Buy it now or bidding prices don't matter if they haven't actually sold at those prices.
1st: Are you looking at sold listings or just the ones that haven't sold? You can put any price you want for an item you're selling on ebay, that doesn't mean it'll sell or be worth that. I could put a toothpick on there and start the bid at $1,000,000 for it.
2nd: I tend to get bad luck on...
Feraligatr is $15 for 1st and $8 for Unlimited.
Charizard EX's price can vary greatly depending on how played it is. A picture would help.
That Primal Groudon is $14.
What exactly do you mean the Slowking's info is wrong? Can you provide a picture of it?
You can have 4 of each card in a deck (with as many basic energy cards as you want). That's based on its exact name. So you can have 4 Yveltal and 4 Yveltal EX in your deck.
A Pokemon deck is exactly 60 cards.
You can have as many Pokemon, trainers and energy as you want as long as you...