Liliana's Contract — ruling 1

If you don’t control four Demons with different names as your upkeep begins, the second ability of Liliana’s Contract won’t trigger. You can’t take any actions during your turn before your upkeep begins.

Liliana's Contract — ruling 2

If the second ability does trigger, but you no longer control four Demons with different names as the ability resolves, you won’t win the game.

Liliana's Contract : règles, fonctionnement et interactions (MTG)

Liliana's Contract is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

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.

How it works : Liliana's Contract

Original English text — Wizards of the Coast / Scryfall

#1July 13, 2018· Wizards of the Coast
If you don’t control four Demons with different names as your upkeep begins, the second ability of Liliana’s Contract won’t trigger. You can’t take any actions during your turn before your upkeep begins.
No other card is named in this ruling.
#2July 13, 2018· Wizards of the Coast
If the second ability does trigger, but you no longer control four Demons with different names as the ability resolves, you won’t win the game.
No other card is named in this ruling.