Ah, yes...the Wolf. Love that thing. I remember buying the printed diagrams of that many years ago and used it as a major plot device in an alternate-universe RPG where the Terran Empire was using it to destroy the Changeling's homeworld in the Gamma Quadrant, wiping out the last vestiges of the Dominion. It was so awesome I had to use it somehow, although I think it fits more in the mirror universe than the prime universe. Planet-killing mass drivers isn't very Starfleet-y.