What if upon spell factory being destroyed that it*releases* renainder of spell it was currently working on? So if it was working on lightning spell minor bolts of lightning would spurt out and do a little damage. Or if it was a freeze spell it would freeze a troop or two. Or if jump spell it could push troops back a little ways....making it seem as though the factory *upon destruction* is unstable after a certain point of damage or upon being destroyed.







