Marvel.

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Across
  1. 5. He's the captain and he thinks he's funny but he actually isn't.
  2. 6. I think he's the youngest in the group. Iron man really helped him a lot.
  3. 7. When he gets angry, he expands and becomes green.
  4. 8. His hammer is very very precious to him.
Down
  1. 1. Her name is also a song's name.
  2. 2. Wakanda forever!
  3. 3. It is really sad that this person died in Endgame.
  4. 4. He's really good at shooting arrows.
  5. 6. Her abilities include telekinesis, energy manipulation and many more.