I believe he does exist in the avatar database, as do almost every iconic in the card game. However, a huge amount of them cannot be found if you try to use any filters, as I reported here.. In addition, you can't navigate between pages or see later 'columns' of avatars as reported here, rendering most of these iconics unable to be found or selected. But, again, they are actually 'available', there's just technical problems preventing them from being selected.
You are correct, after some manual searching I found two Aric avatars and at least one newer Red Raven.