Merry Christmas, Jacob!

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Across
  1. 7. Where books and knowledge are exchanged
  2. 9. It's coming up on 12/30
  3. 10. Not a goblin, not an elf
Down
  1. 1. A sweet celestial rock
  2. 2. Let's you send a card from your Deck to the GY
  3. 3. Another word for horse
  4. 4. Sour
  5. 5. Another name for a shark
  6. 6. An elder dragon
  7. 8. A mask that one wears