Paperback, 2016. Collects 1997's UNCANNY X-MEN #341 - 350, UNCANNY X-MEN #-1, X-MEN #62 - 64, and X-MEN #-1.
Before we dive into our latest X-MEN collected edition (released just a scant few months ago, in fact), let's address the sizable elephant in the room: the ONSLAUGHT OMNIBUS ended on UNCANNY X-MEN #337 and X-MEN #57, while this book picks up with issues 341 and 62, respectively. So we're missing three issues of UNCANNY and four issues of X-MEN as of this writing. Personally, if you toss whatever annuals and X-MEN UNLIMITED issues came out around that time, I think those contents would make for a fine ONSLAUGHT AFTERMATH trade or something along similar lines, so I hope to see the errant issues collected soon.
As for THE TRIAL OF GAMBIT: the book opens with UNCANNY X-MEN #341 by Scott Lobdell and Joe Madureira, an issue I seem to recall was heralded, at least by WIZARD magazine, as a modern-day classic in which Cannonball battles Gladiator of the Shi'ar Imperial Guard. This leads directly into UNCANNY 342 through 345, in which Lobdell, aided by Madureira and guest artist Mel Rubi, sends the X-Men off into one of their classic tropes which he had, up to this point, not yet done during his run on the title -- a spacefaring saga in which the group battles the Phalanx for the fate of the Shi'ar.
Then we jump over to the sister title, X-MEN, for issues 62 through 64, plotted by Lobdell, scripted by late nineties X-office go-to guy Ben Raab, and drawn by the newly arrived Carlos Pacheco and Art Thibert. The story follows the remaining Earthbound X-Men on a trip to Hong Kong for team-up with Shang-Chi and a battle with Sebastian Shaw and the Kingpin of Crime.
