Realizing the fragility of the caster at early levels (though at higher useful as well), the spell mirror image was introduced. I think it would be a wonderful idea to include into DDO but have the images run off in different directions making an intimidate check or will save DC in order to draw attention from the caster.
The images could be simplified to wisps or shadow...call it Shadow mirror taking form of just the base Race of the caster without detail.