The Esoterics of Potentiality

This book is bound in leather with adamantine hinges and fittings. The vellum pages stained with a purplish hue with a dark magenta ink detailing exquisite calligraphy, annotations and illustrations.
==== Research completed by Alton Elenaur ====
The consideration of time, space and the manipulation of these forces were hardly thought of before my arrival in Elysia. And yet, despite everything, it proves to be the single component that would change the world as we know it for the better. There is not mistaking that my home would sooner see a light be foolishly followed and worshipped, when it is clear to those with open eyes that a construct can worshipped with more seriousness than a living creature that walks this earth. But when many profess to be gods, or to have found an aspect of pseudo deities, it is not such a stretch to see how a construct imbued with light and a fragment of possibility could be deemed worthy of worship. Even the words as I write them are written with a frown and gritted teeth.
Simple trick of manipulation to some, dark magic to be banned and thrown in with other spells within the School of Dissidence. Yet, if it were shown the same degree of respect as it is shown in kind with fear, the developments of my studies into potentiality could have seen great progress in undoing what has come to pass. Countless lives could be saved with the turning back of time by a few mere seconds. Only one other has shared my ambition and desire to exceed the possibilities of known Dunamancy and see about a way to stop atrocities before a seed is planted to destroy the world or life within it. Through the expansive study of foresight with Estelar, a far less demanding spell could be designed in the creation of Fortune's Favor. If such a powerful spell could be compressed into a more frugal expense of the Demein's power, why not other forms of magic?
Temporal Shunt was designed to push creatures back in time a mere six seconds in order to undo to the potentiality of a single moment. Why only a mere six seconds? Where spells can be compressed and simplified, why must they remain in their inferior form and be settled as they are? In conjunction with Time Savage, where time passes in rapid decaying motion, why not reverse these effects with the components of Temporal Shunt and see about changing the history for a single individual and undoing the motions, actions and decisions they had made. Dangerous, ambitious and wildly irresponsible, the council of Elders were quick to reject and place an injunction upon this practice. It is clear that democracy only holds back the study of magic, time and space. Where is the freedom needed to save the world and undo the atrocities of man? 
It mattered not, there were those who would see my studies continue in the name of mankind. If the Elders would see our understanding of magic falter, Arcadia would not. One way or another, we would see the manipulation of the Demein and study of the arcane exceed even our own greatest ambitions and all to serve the longevity and progression of mankind and every living soul within the multiverse.
Epic Magic Dunamancy
Casting Time: 1 hour
Range: Touch
Components: V, S, M (an hourglass filled with diamond dust worth at least 10,000gp, which the spells consumes)
You touch a willing creature within range, sending its consciousness through time and space to relive key moments of its past. During this passage of time, the creature can change the outcome of a situation or alter their decision making and actions. As long as the moment in time does require the presence, actions or knowledge of another creature, willing or not, then the outcome can be changed. Due to the nature of the spell, the possibility of manipulating the actuality of the past and success of the spell is ultimately and entirely at the discretion of the DM. For each moment that is changed in time, the creature must succeed on a DC15 Wisdom Saving Throw. The DC rises by one with each moment that is altered throughout history. On each failed save, the creature must roll on the indefinite madness table for a permanent effect.
If the spell is cast an additional time on a creature, there is an 80% chance they will suffer the effects of the Time Ravage spell and unable to save against the effect and taking the maximum amount of damage possible.