Fruit of the First Tree

• WWizards of the Coast2014-11-24
  Official Ruling
  Use the creature’s toughness when it left the battlefield to determine the value of X. If that number is 0 or less, you won’t gain life or draw cards. (You won’t lose life or discard cards either.)
• WWizards of the Coast2014-11-24
  Official Ruling
  Fruit of the First Tree can enchant any creature, but Fruit of the First Tree’s controller will gain life and draw cards.

Rulings via Scryfall