You alter an item's aura so that it registers to detect spells (and spells with similar capabilities) as though it were...
Spells like Imbue With Aura specifically call out that targeting spells (such as smite evil) function on the target as though they naturally posessed the aura placed upon them. Given the wording of Magic Aura, specifically the part in parenthesis, is this also the case for this spell?