This cover DOES NOT LIE. It's a little awkward the way they get rid of the rest of the Four but this issue was, in fact, "The Big One" and it was "Super Spectacular!" and it did indeed deliver "page after page of pulse-pounding thrills!" A true classic.
Warlock Epic 9: Death of Warlock. Spiderman shits himself. Massive Warlock Thanos fight. Avengers versus everyone. Jim Starlin. Possibly the greatest superhero comic ever created by Marvel. Take a bow the great Jim Starlin.