There's more information about Planechase on the Planechase page, including full decklists. But there's one more card you haven't seen yet!
Just for showing up and playing, each player will receive a Tazeem promo plane card (while supplies last). What's Tazeem? Oh, it's just a plane not included in any of the four Planechase decks, that's all. And it looks ... like this!
Tazeem is not included in any of the four Planechase decks. If you want one, the Planechase Release Events are the place to be!