Format:
cast 'spirit hammer' <options>          cost: variable

   This spell may be cast by clerics of low to mid level.  The spell creates
a hammer made of magical energy that may be used as a weapon to defend the
caster in a time of need.  The magical hammer is well suited to the caster
in alignment, and more powerful weapons can be created at higher levels.

The caster has some control over the final product.  The 'two' option can
be used to produce a hammer requiring both hands to wield.  Also, since the
hammer is a magical artifact, one of the damage types 'zap', 'fire', or
'ice' may be specified.

The hammer will dissipate after a certain length of time, usually within a
few hours.