User blog comment:Omega natsu2/Chapter 385: Spirit King vs. Demon King, Predictions./@comment-77.194.131.143-20140523065533/@comment-24264679-20140523155506

The Celestial spirit King gave Lucy this power and he is the only one who can take it away. This isn't like Wendy or Natsu eating Ethernio which eventually disappears or Natsu eating Jellal's magic power this was a gift from the Spirit King. I don't see him taking it away.