[Vicious Love]

Taking a cue from D&D, how about a supercharged variant of Quickness(Maybe affecting the entire battlefield, including mages) that also has the same effects as Burden of Time on quickened troops, either during or after the battle?
Since the idea is to use this spell on hordes of expendable goons, not mages or SCs(BoT does have a chance of killing a unit outright, after all), we could always make MR negate it(Either both effects, or neither).
An SC oriented, irresistable variant on this spell would not only Burden of Time, but would also reduce the SC's strategic move to 0 and increase his encumbrance by 10 or so for two full months of recovery. Exploitable, but not all that easily.