The most MARVELeous puzzle ever

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Across
  1. 4. Stark I- I don't feel so good
  2. 6. lost his hands but gained POWER!
Down
  1. 1. literally fell in love with himself
  2. 2. Who says this line "he's a friend from work?"
  3. 3. the star of _____vision
  4. 4. literally fell in love with her self
  5. 5. I've come to bargain - Doc.Strang
  6. 7. who is the cutest Guardian