Quote Originally Posted by TinyRedLeaf View Post
It also brings up another question: Has it ever been confirmed that the Scions also comprise members who possess the Echo, besides Minfilia and you, the main character? It seems to me that there are no longer any other known Echo-users, other than these "two" people.
It hasn't been confirmed that any members of the Scions have the Echo, but it's very likely. The Echo isn't as rare an ability as ARR implies. The Path of the Twelve was formed because there were suddenly so many people coming into the power in the years leading up to the Calamity. Iceheart is likely just one of those people who saw a meteor shower one day and started having Echo visions like so many others.