Help on spell psionic resistance

Current upkeeper: Pickett
Casting time    : 8
Spell cost      : 250
Spell type      : resistance (single)
Spell words     : Mahl ex psionic
Affecting stats : Wis, Lvl
Affecting skills: Arcane power, Mastery of shielding, School of the mind
Affecting spells: psionic resistance
Adds some resistance against given damage type. Different types can be
stacked but effect can be somewhat less if there is already resistance
spell upon target.

Protection from evil < List > Psychic barrier