Protection from Evil, 10' Radius creates a magical barrier around a creature in 3 meter radius at the distance of 1/3 meter. The spell protects its target in 3 ways:
- all attacks on the protected creature made by evil or evilly enchanted creatures receive a -2 penalty to attack rolls
- the protected creature receives a +2 bonus to saving throws caused by attacks of evil or evilly enchanted creatures
- the target is protected from being attacked by creatures summoned by Cacofiend, Summon Fiend, or Gate
Do note the extremely long duration of the spell; 2 turns(in-game hours) per caster level.