Pyre

Volfred individually needs to deliver 200 Pyre Damage cumulatively (basically, points stack up) in multiple Rites before this pops up. If you reach a Liberation Rite and are planning to free him but this trophy hasn’t popped up, head over to Practice Rite mode (accessed through the Beyonder Crystal in the wagon) and keep playing Rites (with Volfred selected in your triumvirate) until this pops up.

I found Volfred the hardest to get this trophy for because he is a highly defensive and slow character, so you may need Practice Rite for him more than the others.