I've already used the X-Men's "Asgardian War" storyarc as an example of
best friendship between Warlock and Cypher. And here it is again, as a springboard for perhaps my favourite "What it...?" world.
The cover alone convinced me! :D

At the end of the Asgardian Wars Loki gave the X-Men and New Mutants a choice, stay in Asgard and keep all that they had achieved there, all the new lives and new loves they had found, and in the case of Storm, powers returned to her, or return to Earth as they had been before they arrived; Storm would be powerless, Magma would be human instead of the elf-form the elven folk had curssed her with, and so on (The only exception he made, out of
narrative necessity courtesy, was that Karma would NOT be returned to the grotesquely obese form her time under the control of the Shadow King had given her). The choice HAD to be unanimous though
Of course, in the mainstream MU, the choice to return to was made, but this IS a "What if...?"
( ...all things are possible )