Dungeons and Dragons #4

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Across
  1. 4. Nature spellcaster
  2. 5. Hidden thing
  3. 7. Magical horned horse
  4. 10. Sticky goo monster
  5. 11. Warm resting spot
  6. 16. Paper of spells
  7. 17. Helpful friend
  8. 18. Being of fire water earth or air
  9. 19. Small green mischief-maker
Down
  1. 1. Shiny reward
  2. 2. Dark shape
  3. 3. Wild strong warrior
  4. 6. Magic symbol
  5. 8. Puzzle to solve
  6. 9. Cold magic
  7. 12. Exploding flame spell
  8. 13. Guide for explorers
  9. 14. Huge creature that regenerates
  10. 15. Big green fighter