Marvel DC Crossover 3

3. The isolationist nation that serves as the world's only source of Vibranium.
5. The indestructible metal alloy bonded to a mutant's skeleton.
9. The high-yield clean energy source designed to keep shrapnel away from a heart.
10. The alter-ego created by a massive overdose of gamma radiation.
11. The mystical pits used by the League of Assassins to restore life and youth.
14. The militaristic alien race governed by the Supreme Intelligence.
15. Force The extra-dimensional "Force" that Barry Allen accesses to manipulate time.
16. The glowing blue cube that acted as a vessel for the Space Stone.
17. The former ruler of the Nine Realms and father of the God of Thunder.
18. An immortal race of beings who lived in secret on Earth for seven thousand years.

1. The signature non-lethal throwing projectile used by the Dark Knight.
2. The bureaucratic organization tasked with preserving the Sacred Timeline.
3. The "Scarlet" alias used by the most powerful magic-user in the Avengers.
4. The mystical residence located at 177A Bleecker Street in Greenwich Village.
6. The natural language UI that Tony Stark eventually uploaded into a body.
7. A mining colony located inside the severed head of a Celestial.
8. The subversive organization whose motto is "Cut off one head, two more shall take its place."
12. The first name of the leader of the Fantastic Four.
13. The moon that served as the home world for the villain who sought the Infinity Stones.
15. The surname of the industrialist who built his first suit in a cave.