Format:
cast 'entangling roots' <target>        cost: 40 mana                         

   This is a mid- to high-level cleric spell.  When cast, roots and vines will
grow suddenly up from the ground and attempt to grasp the target.  While the
roots will not do much damage themselves, they effectively prevent the target
from moving, hindering the targets' fighting abilities severely.

This spell is difficult to get to work - often the target can see the roots in
time to jump out of range, and those well protected against magic will be able
to stop the roots via magical means.  Additionally, the target can be freed by
killing or cutting enough of the roots and vines.