Extremis Iron man runs a gauntlet.
1. Captain America
2. Black panther & batman
3. Wolverine
4. Beast boy
5. Cyborg
6. Namor
7. Hulk (base strength)
Can Tony clear it?
Knockouts eliminate people.
He gets 10 minutes before each match to study his opponent.
Each fight starts in an abandoned warehouse.
Teams have no prep. And they don't know who they are fighting.