This issue is a variant of Doctor Strange, Sorcerer Supreme (Marvel, 1988 series) #35 [Direct Edition].
Infinity Gauntlet crossover.
For a complete list of Infinity Gauntlet crossover comics, please see the series info page for the Infinity Gauntlet limited series.
Story takes place between pages 5 and 34 of Infinity Gauntlet #5 and between Hulk #384-385.
Last issue and this issue both say the story is continued in Infinity Gauntlet #6.