Guess the character!

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Across
  1. 3. A flying bird
  2. 6. Self healing guy
  3. 7. Super soldier metal arm
  4. 10. The oldest america in Avengers
  5. 14. Half man half parasite
  6. 15. A teenage hero
  7. 16. Tree
  8. 17. King over Wakanda
Down
  1. 1. Big and green
  2. 2. Was a part of Red Room
  3. 4. Adopted from Jotunheim
  4. 5. Super fast
  5. 8. Man with bow and arrow
  6. 9. Created the group Avengers
  7. 11. Man small as an ant
  8. 12. A married robot
  9. 13. Trapped a whole city to control herself
  10. 18. A litteral god