I believe it would need to be someone who was already powerful in some way in order to survive absorption.
However, it is a possibility. Or it is possible he did not survive and has returned from the dead to be what we know now as you have surmised. However, I would imagine the volcano would grant powers related to fire and not to control over beasts.
no subject
However, it is a possibility. Or it is possible he did not survive and has returned from the dead to be what we know now as you have surmised. However, I would imagine the volcano would grant powers related to fire and not to control over beasts.