I just think it’s cool to think about arc 2 from the perspective of a life wizard because

Azteca: the wizard has never lost on such a grand scale before. The destruction of Azteca is devastating enough, but it’s even worse for a life wizard since their purpose is to heal and keep their teammates alive; however, their failure at Xibalba created such a large amount of death, which is completely against their school motto of Creation and I bet would be especially mentally taxing to them afterward

The Song of Creation: life wizards echo the Song to perform magic. Therefore, there is an added layer to the fight against Morganthe since she wants to find and utilize the Song of Creation to remake the Spiral in her image.