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.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.