Synopsis
cast 'harden exoskeleton'
Description
Insects possess the rare ability to rapidly change the density of their own chitin, decreasing it so they can stride on water or increasing the hardness of their exoskeletons to become more sturdy. Biologically rapidly, at least- the process takes a few minutes to get going, and mages who can tap into this power find it difficult enough to harden their own skeletons, much less increase the pace at which this occurs.