Liliana's Contract is a rare Enchantment card from Secret Lair Drop (SLD), collector number 161. Current market price: $6.77 (foil $6.84), TCGplayer market prices via Scryfall.
When this enchantment enters, you draw four cards and you lose 4 life. At the beginning of your upkeep, if you control four or more Demons with different names, you win the game.