The cantrip spell from the Players Handbookis intended to describe a host of minor magical effects. In this
system, a wizard may choose to memorize a cantrip as a 1st-level spell just as its described in the PHB or he can memorize individual applications of cantrip for a cost of one spell point each. These one-shot cantrips have
the exact same effect as the 1st-level spell, but each application
consumes 1 SP and has a duration of one full turn.
All cantrips are free magicks by definition; the wizard can perform any minor
magical feat appropriate for the spell without selecting the precise
incantation ahead of time. The only limit to the number of cantrips
a wizard can cast is the number of spell points he has.
All normal considerations for cantrips as described in the PHBstill apply they are minor magic, useful in role-playing or
grandstanding but generally useless in combat. Of course, clever
and resourceful players can create plenty of mayhem, even with
magic as weak as this.