Bridge from Below is a rare Enchantment card from Modern Masters (MMA), collector number 74. Current market price: $0.86 (foil $1.64), TCGplayer market prices via Scryfall.
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.