[darkstorme]

I would argue that this would be tricky, as Divine Relation (as it stands in an RP sense) is asking your deity for their opinion of an individual. So any counter-spell would have to fool a god.

I would suggest that rather than blanking out one's own "aura", the spell do something like nullify the Divine Relations ability for a given radius/period of time. Rather than ally/neutral/enemy, all the priest asking would get is "no answer". This would, of course, make people suspicious.. but a clever individual might even be able to use the ability to throw doubt on another.