The Avengers Vol. 1 (1963-1996) #156

Plot

In order to stop Attuma's plan for world conquest, the Vision strikes a deal with Doctor Doom! The Avengers join forces with the ruler of Latveria and pursue Attuma into his undersea lair! At the same time (and with guidance from the Beast), Prince Namor, Wonder Man, and the Whizzer zero in on Attuma's citadel too! And in the depths of the Atlantic Ocean, Earth's Mightiest Heroes and the Avenging Son battle Attuma and Tyrak for the freedom of the world! Fortunately, Doctor Doom is there to help the good guys...or does the good doctor have something else in mind? (mycomicshop.com)