Bridge from Below is a rare Enchantment card from Alchemy: Secrets of Strixhaven (YSOS), collector number 32.
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.