Slice in Twain

• WWizards of the Coast2017-09-29
  Official Ruling
  If the target artifact or enchantment is an illegal target by the time Slice in Twain resolves, the entire spell doesn’t resolve. You won’t draw a card. If, on the other hand, the target is a legal target but isn’t destroyed (most likely because it has indestructible), you’ll draw a card.

Rulings via Scryfall