"How many times did you use the mask?" Rio said, as he took off the mask of deception and his appearance of Shiva was changed back to his original looks. It was almost night time already, and he had to go back, as Amelia and Esme had told him about it hours before.
"Two times." Ryan said as he passed him a file "I didn't use it to fight and all, that was just for some meetings and to get a deal with some people who wanted to do it face to face."
Rio looked at the files which held a recording crystal, which probably had recordings of both times he wore his face, and the file which had the background of the people who saw him or met him at that time.
The Mask of Deception couldn't be used to copy someone's face and then to fool others easily. But since it was made by Loki, if you can get him to help you, you can do it.