I'd actually agree with you, that stockroom use in fights is sketchy--however, it is a tactic used and abused by the warlocks guild to an extreme.

I don't condone it, but do look to within your own gates.

Battlemage Fistandantilus, who would like to see such abuse cease on ALL fronts.

Written by my hand on the 7th of Agamnion, in the year 1114.