Shade
Monster Junkie
I just found this, which might be a perfect fit...
Spell Reflection (Ex): Any spell or effect that targets the mirror mephit and does not overcome its spell resistance is reflected directly back at the caster or the user of the item that generated it. This new target is entitled to a saving throw if the effect permits one. Area spells are never reflected unless they are visual effects, such as color spray. In this case, only the portion of the area that surrounds the mirror mephit is reflected; all other creatures in the area are affected normally.
Spell Reflection (Ex): Any spell or effect that targets the mirror mephit and does not overcome its spell resistance is reflected directly back at the caster or the user of the item that generated it. This new target is entitled to a saving throw if the effect permits one. Area spells are never reflected unless they are visual effects, such as color spray. In this case, only the portion of the area that surrounds the mirror mephit is reflected; all other creatures in the area are affected normally.