In practice, to cast a spell, the caster must first pass the "Casting" phase (make the spell happen or come into being). This is automatic if the spell has a BMR 0; otherwise it requires a throw of the dice. Then the caster's spell must enter the Targeting phase (reach its target correctly). The effectiveness of the spell depends on the caster's experience and the size of its target. Some spells do not need to be targeted, as they act on an Area of Effect. Finally, if the spell is an Illusion or Charm, the target is allowed an attribute-based Saving Throw to resist its effects, using either Intelligence (for illusions) or Wisdom (for command or charm). This three-stage system makes magic less automatic, more random, but not less dangerous because the effects of high level spells are often terribly fatal.