Nicklear War

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Across
  1. 2. Cosmo and Wanda
  2. 5. Danny's enemy
  3. 7. Unalive
  4. 8. Green goo
  5. 9. One of the four elements
Down
  1. 1. Ravioli, ravioli
  2. 3. Yellow and porous
  3. 4. Master of the elements
  4. 6. Fairy baby