Planeshift
The next exciting expansion is Planeshift, it also has gold and split cards.
In this 143 card set there are all new spells and creatures. Here some of the best cards in Planeshift: Planeshift Picture Gallery
The story line, in my opinion, is even better then the last. I don't like the ending because they made us wait three months for the next book to come out, but overall the book is great.
Continue onto Apocalypse
