Shatter

Shatter does not say "Subject’s DR does not protect it" like its prerequisite spell Weaken so it's unclear whether or not to apply that, since it does say "Similar to Weaken but".
The assumption that it is identical to Weaken in every respect except the 2 listed exceptions (quicker, may be cast repeatedly) would be wrong, as there are other differences visible:
*it is Very Hard, instead of Hard
*it does a better-ratio 1d per energy instead of per 2 energy
==See also==
*Explode
Category:Spells
Category:Making and Breaking College