User blog comment:FairyRaven/Fairy Tail vs. Alvarez Empire! Place your bets!/@comment-180.191.130.30-20150916035212/@comment-25962249-20150918075859

It is not at all the same as those. They literally fused their own element with another element. She is simply borrowing a magic from the spirit king. He has every right to take his magic back, but he has nobody to give it back to, so as long as she doesn't turn evil, she will keep it indefinitely.