void exercise_spell( spell_type spell_ex, bool spc, bool divide );

void exercise_spell(spell_type spell_ex, bool spc, bool divide);

        random_blink(true);

        random_blink(god != GOD_XOM);

void exercise_spell( spell_type spell, bool spc, bool success )

void exercise_spell(spell_type spell, bool spc, bool success)