Rules changes

[Maraxus of Keld]

By now, most of you have heard about the new Legend rule. For anyone who hasn't, here's what's new:

Legend is no longer a creature type. Now, it's "Legendary Creature - Barbarian" rather than "Creature - Barbarian Legend." So you can't use Unnatural Selection to turn creatures into Legends anymore.
Also, what happens when you play a Legend is now different. Now when you play a Legend that's already out on the table, all copies of it die, rather than the original staying in play. This change was decided on after somebody lost a Pro Tour because he was holding Akroma, Angel of Wrath in his hand but his opponent had already cast it.

[Maraxus of Keld]

This rule, however, you hay not have heard about. The creature type Wall now no longer has "cannot attack" automatically associated with it. Walls now have a keyworded ability known as Defender stuck on them. So the official text of Rolling Stones now reads "All walls lose Defender" or something like that.