[Fantomen]

I have used MoV with LA ulms vampire counts. There is good synergy since you can forge them with your forge bonus mages, and will have a lot of immortal flying counts and labs spread around for blood hunting anyway.

I also used them with EA agarthas troglodyte lords. The synergy there is that troglodyte lords will trample right into the midst of the enemy troops before blowing up, maximizing the relative effect of the explosion.

I still think it is one of the least cost effective ways to kill stuff, and rarely worth it. The advantage that makes it useful in rare cases is that you can load up a bunch of them in peacetime to have as a last resort at crucial moments. I don't think it is possible to make them worthwhile more generally speaking.

It might be a good idea to increase the power of the blast in next CBM if possible.