The following article is based on a subject that has not been officially named in any official Square Enix material; the current title is merely a placeholder.
An unnamed esper that looks like a red palette swap of Ifrit challenges Kefka to a battle in Thamasa. The battle is cinematic. In the mobile/Steam release the unnamed esper uses Ifrit's sprite instead of being a palette swap, although a palette swap version of the sprite is found inside the coding of the mobile and Steam releases.
When Kefka transformed the unnamed esper into magicite, the magicite sprite is not the same as the magicite sprite that appears on the field. It is an unique sprite and it only appears in said cutscene.