User blog comment:FairyRaven/Fairy Tail Chapter 453: A Father's Job, Review and Commentary/@comment-4933386-20150919143108/@comment-4933386-20150919143902

idk either. He has a whole year to perfect his ice magic and he might just found a way to use it and plus his eagerness to defeat END might cause him to do such thing. And maybe he somehow perfected it that it doesn't require to sacrifice himself but at another cost.