I'm not balance or level 58 but the spell is called "Ra" A giant man with a bird head comes out and shoots like sun beams doing like 600 damage to every enemy
you can look at central or youtube if you want to see it for yourself
Ra is not just your every day giant man with a bird head, but the Egyption sun god. I believe he is also the king and ancestor of most gods. As for the Ra description, I think he does about 600-650 damage to all enemies.