Format:
cast 'summon'                     cost: 50 mana

   Summon gives you a chance to bring a player or mob to you.  If the target
has 'nosummon' set, they will attempt to resist being summoned.  Summon will
not work across planes, and the current summoning practice will not work on
extra-planar creatures such as ghosts and phase shifted creatures.

Summon is also a very intense spell, requiring high intelligence and wisdom
to be cast properly.  Also, due to the nature of the spell, the saving throws
against it are fairly high.  It is not uncommon for a summon spell to fail
even when assisted by the target of the spell.

Do not summon aggressive creatures to commonly used places... you will be
held responsible for any incurred accidental deaths.