[Zenzei]

Thanks for the replies guys.

I went and cast the WW boosted MW (effective temperature cold 3). Out of the ~240 enemies about 90 died(38%) including a stack of mages. I'm quite happy with those results. Should I had had an extra 50 gems for simultaneous second casting or some of my ice devil SC's nearby for mop up fight, I'm pretty sure I would have wiped out the whole thing.

At least in the light of this experiment I agree with DonCorazon. Murdering Winter seems to be quite effective against low HP troops/commanders, in my case the enemy was Jomon.