User blog comment:Glen Gable/The two newest Spriggans II/@comment-26975670-20161028203508

Most likely a split personality because there's no way a future counterpart could be on the same level of magic as Erza is at the moment. No matter how much you try to equalize it, a split personality will obviously have the same amount of strength in all aspects. If it's a clone, sure, they may have the same level of everything, but the original can always overshadow the clone, just like when Team Guy faced their clones after removing the seals from those areas when trying to save Gaara from the Akatsuki.