Help Calm

Syntax cast 'calm' 

One of the most useful and often overlooked abilities of the master
cleric is the calm spell, which can put an end to all violence in
a room.  Calmed creatures will not attack of their own volition,
and are at a disadvantage in combat as long as the spell soothes
their minds.  The more violent activity there is in a room, the
harder the spell, and it is all or nothing -- either all combat in
the room is ended (with the exception of those who are immune to
magic) or none is.