User blog comment:Purebreaker/Maxwell, The Creator of The World/@comment-7709681-20141018143750/@comment-24023859-20141020180259

I can help you in Purebreaker's stead. Maxwell is a unit obtained from a difficult Trial, where she has attacks that her usable unit version doesn't, namely Sacred Song, Rune, Meteor, Resurrection and Destiny. They more than likely chose Genesis and Endless as Maxwell's Brave Bursts due to those being the only 2 attacks she can cast when fought as a normal boss in a normal quest.