Devil’s Ego

bolster your personality and become an outsider to spells cast on you.

 On the casting of Devil's Ego, the caster's force of personality is magically enhanced for an extended period of time. Furthermore, this spell turns the caster into an outsider where spells cast on him or her are concerned. For example, the caster becomes effectively immune to Charm Person. However, the increase in strength of personality does not translate to additional magical power in the form of increased frequency to cast spells, although it makes existing spells stronger.

when this spell ends, it gives the user the Frightened condition and Hostile attitude for one round of combat, plus 5 hit points of psychic damage