Rewind

Rewind (巻き戻す Maki Modosu) is a Caster-Type Ancient Spell and Lost Magic and type of Time Magic that gives the ability to reverse a being's body back to a previous state. It is similar to Arc of Time but it only works on living sentient beings and it can only reverse the body.

Description
This Magic revolves around the manipulation of the "time" of living beings. When Rewind is activated, The user's horn grows and glows brightly. Those that are in contact or in the vicinity of the caster at the moment of the activation start having their bodies rewound to previous physical states, undoing or bringing back injuries or modifications from the present or the past. It is capable of reverting people back to a point before they even existed, effectively erasing them from existence. Kai Chisaki even stated that this magic can rewind genetics, dubbing it a terrifying power.

Rewind can not be used to travel in time nor make other people travel in time since it can only be used on living things that the user can physically touch.

During the climax of the Shie Hassaikai Raid, it is shown that Elizabeth's strong emotions play a role in her magic's efficacy. Recalling how Natsu Dragneel risked everything to save her, a hope-infused Elizabeth obtained the determination to help others, causing her magic to spontaneously activate, and immediately defuse Kai who had overhauled himself with Shin Nemoto. And as Natsu protected Elizabeth, her Rewind remained active and continued to grow stronger, on which Natsu capitalized in order to reverse his body back to when he had Igneel's magic power. After the battle, Elizabethi's Quirk began to run awry, had it not been for Makarov Dreyar using his Dispel magic to neutralize her power, and eventually, her horn shrank back to its minuscule size.

Trivia

 * Because of her young age and inexperience, as well as the lack of information about Rewind, Elizabeth is unable to properly control her ability, leading to the erasing of her father on one occasion.
 * Its nature as a spell that affects only living beings also restricts its potential for training due to the high risks involved. Because of this, Makarov Dreyar is one of the few people that can stop Elizabeth if she ends up losing control of her magic.
 * Through several tests and experiments, the Shie Hassaikai was able to develop a drug that could target a person's Ethernano "container", rewinding it to an unusable state. The drug consists mostly of Elizabethi's blood and cells, which contain the properties of her magic. The organization created an antidote capable of restoring destroyed ethernano "container" using similar methods, though the antidote was never recovered.