Superheroes!

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Across
  1. 3. Leader of Fantastic Four
  2. 5. He's super fast
  3. 8. The first Avenger
  4. 9. X-Men member always ready for poker
  5. 11. Marvel's superhero group
  6. 12. Flies an invisible plane
  7. 13. Just a boy from Krypton
Down
  1. 1. Smarty-pants X-Men leader
  2. 2. DC's superhero group
  3. 4. Batman's BFF
  4. 6. She can control the weather
  5. 7. Friendly web shooter
  6. 10. God from Asgard