Marvel villains

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Across
  1. 2. sister of another villain
  2. 4. not back but beck
  3. 6. he is keeper of the soul stone
  4. 8. lives on Sakaar and he is brother of the Collector
  5. 10. his spaceship(The Dark Aster)was huge!!
  6. 11. brother/partner in crime
  7. 12. he is made of vibranium
Down
  1. 1. "they called me a madman"
  2. 3. father of Harry Osborn
  3. 5. he has been king of Wakanda
  4. 7. black and slimery
  5. 9. he makes his own planets