No reason to spy the same person twice so I'd go for that.
"SECRET ABILITY activated by the death of Drasil. He wears a ring that disguises his intentions. If he is faction spied by Elchra, he appears as a Forest Dweller. If she touches him, however, he appears as Orivior."
Super secret ability isn't the faction spy cloak right? If different then you might want to move the secret ability comment to the end of the sentence for clarity.