黄泉からの橋

トークンでないクリーチャーが１体戦場からあなたの墓地に置かれるたび、黄泉からの橋があなたの墓地にある場合、黒の２/２のゾンビ・クリーチャー・トークンを１体生成する。
クリーチャーが１体戦場から対戦相手の墓地に置かれたとき、黄泉からの橋があなたの墓地にある場合、黄泉からの橋を追放する。

Bridge from Below

Whenever a nontoken creature is put into your graveyard from the battlefield, if this card 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 this card is in your graveyard, exile this card.

Special Guests

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.

The List

Ultimate Masters

Modern Masters

Whenever a nontoken creature is put into your graveyard from the battlefield, if Bridge from Below is in your graveyard, put a 2/2 black Zombie creature token onto the battlefield.
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.

Future Sight

Whenever a nontoken creature is put into your graveyard from play, if Bridge from Below is in your graveyard, put a 2/2 black Zombie creature token into play.
When a creature is put into an opponent's graveyard from play, if Bridge from Below is in your graveyard, remove Bridge from Below from the game.

If Bridge from Below isn't in your graveyard immediately before a creature dies, its abilities won't trigger at all. If Bridge from Below isn't still in your graveyard as its first ability resolves, you won't create a token.

If a nontoken creature you control and a creature an opponent controls die at the same time, you choose the order in which Bridge from Below's triggered abilities resolve. You can create a token before you exile Bridge from Below.

Neither ability cares who controlled the creature that died, only which graveyard it was put into. This means that if an opponent controls a creature you own, its death causes Bridge from Below's first ability to trigger, not its second.

While Bridge from Below is on the battlefield, it has no effect. It does something only if it's in a graveyard. Yes, this is a bit weird.