‘Avengers: Doomsday’ trailer reactions: 'Marvel got all their aura back,' fans rave about the new clip

‘Avengers: Doomsday’ Trailer: Robert Downey Jr. Faces Off Against Mister Fantastic, X-Men and Avengers With…

Marvel Studios unveiled the second "Avengers: Doomsday" trailer on Friday during Disney's D23 fan convention, further teasing the massive MCU team-up movie arriving in theaters Dec. 18.