ABYSMAL REALMS HELP FILES

CASTING

Syntax:  cast <spell> [<target>]

Before a character can cast a spell, it has to be learned and practiced.
The more a spell is practiced, the higher the chance is of successful
casting.  Casting spells costs mana.  The mana cost decreases as the caster's
level increases.

The target is optional in a lot of cases.  Many spells which need targets
will use an appropriate default target, especially during combat.

If the spell name is more than one word, then you must quote the spell name.
e.g. cast 'cure critic' frag

Quoting is optional for single-word spells.  The spell name can be
abbreviated to the shortest uniquely identifying characters.

When an offensive spell is cast, the victim usually gets a saving throw.
The effect of the spell is reduced or eliminated if the victim makes the
saving throw successfully.