Whenever a nontoken creature is put into your graveyard from the battlefield, if Bridge from Below is in your graveyard, create a 2/2 black Zombie creature token.
When a creature is put into an opponent's graveyard from the battlefield, if Bridge from Below is in your graveyard, exile Bridge from Below.
5/1/2007 While Bridge from Below is on the battlefield, it has no effect. It does something only if it’s in a graveyard.
5/1/2007 Neither ability cares who controlled the creature (or nontoken creature), only which graveyard it was put into.