My google-fu is strong.<br/><br/>The Aionic template is essentially a damage aura based on spontaneous decay.  Apparently Time around them is so messed up it can hurt others.  Gods or people with some form of eternal youth, such as the one provided by the Extended Youth Knack, are immune to it.  Creatures with the Aionic template are immune to Star Boons used by people of lesser Legend rating, are vulnerable to Magic boons and have reduced soak against Fire boons.<br/><br/>So the template isn't total destruction, but it is nasty if your soak isn't all that great and it's hell on objects.<br/><br/>Also, I have a guess as to what that toxic air is and OH MY GOD PAIN!