User blog comment:FairyRaven/Fairy Tail Chapter 335: The Time of Life, Review and Commentary/@comment-5840892-20130614190903/@comment-5840892-20130615045446

@FTGM

A rather cliche bit about the wording of magic spells and risks involved with such. (A famous example of what I'm describing is the Xanth Novels which are full of them, usually as puns.)

It was said using this Lost Ages Spell can cost the user/caster their time, in order to reverse time. Most people would assume and conclude that this means it kills the user. The loophole is the wording as Hades put it before explaining it.

What if by costing the person their time to use the spell, it litterally costs them their time? Suppose you only move time back one minute, it then costs you one minute of your time. Meaning Ultear's could just be unconucious for a minute, and it took one minute off of how long she would otherwise live, and potentially leave her in a immobile/comatose state after her given up time.

Yes that is riddicolus as hell, and any other adjetives you want to use here as well. But, still possible.