Der Mahlstrom

01/10/09

A permanent card is an artifact, creature, enchantment, land, or planeswalker card.

01/10/09

A plane card is treated as if its text box included “When you roll , put this card on the bottom of its owner’s planar deck face down, then move the top card of your planar deck off that planar deck and turn it face up.” This is called the “planeswalking ability.”

01/10/09

If you reveal a permanent card that can’t enter the battlefield (because it’s an Aura and there’s nothing it can enchant, for example), then you must put it on the bottom of your library.

01/10/09

The controller of a face-up plane card is the player designated as the “planar controller.” Normally, the planar controller is whoever the active player is. However, if the current planar controller would leave the game, instead the next player in turn order that wouldn’t leave the game becomes the planar controller, then the old planar controller leaves the game. The new planar controller retains that designation until they leave the game or a different player becomes the active player, whichever comes first.