While the Extra Deck is limited to 15 cards, often these aren't chock-a-block with repeat copies, as tends to be the case in the main Deck
No two cards are ever the same, and once its gone, its gone
(I may or may not have been pushing her too much, but oh well.) Despite not matching colors with the current deck we've got, partners should always be in your deck, and they can be made into decent cards regardless of color
Low pull rates as well as more than 10 cards reaching a value of more than 20 is a great combination for a set which will eventually increase in price over time as demand becomes greater and the product becomes more scarce
Since the EX era was the first era without Wizards of the Coast, there were quite a few hiccups with the events and the TCG as a whole during this time
Number 7 This card will not be good in a Creatureless deck