Sphinx's Tutelage (ORI) from Magic Origins, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Slawomir Maniak
• Card Text:
  Whenever you draw a card, target opponent puts the top two cards of his or her library into his or her graveyard. If they're both nonland cards that share a color, repeat this process.
  5U: Draw a card, then discard a card.