Amass the Components

• WWizards of the Coast2017-11-17
  Official Ruling
  If you cast Amass the Components with fewer than three cards in your library, you’ll draw the remaining cards in your library, put a card from your hand on the bottom of your library, then lose the game for drawing a card from a library with no cards in it the next time state-based actions are performed.

Rulings via Scryfall