Avengers

3. Queens' friendly neighborhood hero who later joined the Avengers
6. The man who was cursed to guard the stone he could never possess
8. The Infinity Stone originally contained within Loki's sceptre
12. The prison in space where several Guardians of the Galaxy first meet
14. The man who spent 70 years asleep and woke up to a very different world
17. Who created Ultron with Tony Stark
18. The formula that transformed Steve Rogers before he ever carried the shield

1. Powerful mystical artifact created by the first Sorcerer Supreme primarily used to manipulate time and gain knowledge
2. The particles that made shrinking and growing possible for Ant Man
4. The Wakandan herb that gives Black Panther his powers
5. The star-powered object used by Ronan before he acquired the Power Stone
7. He solved an alien-invasion problem by flying a nuclear missile in the wrong direction
9. The powerful glove forged by the dwarves of Nidavellir
10. The alien race that invades Earth during the Battle of New York
11. Where was the Soul Stone hidden
12. The place where Dr. Strange began mastering the mystic arts
13. The person responsible for turning a group of heroes into a team
15. The technology used by the Avengers to travel through time in Endgame
16. The mystical metal from which Thor's hammer was forged
19. The planet where Thor is forced to fight Hulk in a gladiatorial arena