Milling

[Deebiia]

When a deck is completely milled and a player has no more cards in their library, if you make them draw a card will that make them lose?

[Millionlittlee]

Yes yes it would

[Giggle the Draco Genius]

120.4.: A player who attempts to draw a card from a library with no cards in it loses the game the next time a player would receive priority. (This is a state-based action. See rule 704.)