Dimension Dilation

By manipulating the laws of physics and the universe, you are able to shift the planes of reality to do your bidding.

Casting Dimension Dilation will cause a great deal of stress to the caster, who will be vulnerable while casting it. Casting this spell requires deep concentration, a secluded and protected sanctuary, and many other different components. It also takes 10 hours to cast and if the caster is interrupted during the casting process, they will lose concentration and have to restart the process.

Upon casting Dimension Dilation, the caster can choose one of its two effects:

• Regret: Upon casting Dimension Dilation, the dimension and/or reality you are currently in enters a limbo state. Time stops for everything but you and those you wish it to not stop for. While time is stopped, you are able to rewind time and remove or add events or memories to that dimension/reality that had never existed before. You are able to weaken, but not kill whoever you want (ask your GM about specifics concerning how much you can weaken a particular entity), and you are able to cure anyone from practically any ailment that has befallen them. However, you are not able to revive people or creatures from the dead, and once this spell has been casted you cannot go forward in time, even if you had only gone a little bit back in time. 
• Purge: Upon casting Dimension Dilation, the caster can cause their current dimension/reality to crumble, plunging anything and everything in it into chaos and destruction. After 3 days' time, that current dimension/reality will be completely erased, and the caster and whoever the caster wishes to be spared will be moved into a separate dimension of the caster's choosing. 

Casting this spell not only takes a great toll on the caster, but the dimension/reality that it is casted in as well. As for the caster, they will be unconscious for 10 minutes, and gain 4 levels of exhaustion for 1 day. This time can be shortened if the caster chooses to rest, as either a short or long rest (a short rest reduces the exhaustion time by 4 hours, a long rest reduces the exhaustion time by 12 hours). If the caster chose to not purge the dimension and only changed things within the dimension (Regret), said dimension will periodically spawn "dimensional cracks". The 'Dimensional cracks' will take half a day to form and can be any size but will cause physical and mental damage to anyone or anything close to them (within a 300ft radius). It is up to the GM if the 'Dimensional cracks' can or will have other effects, or if these effects even happen in the first place.

If Dimension Dilation is cast again in the same dimension/reality as it was when it was changed (not purged), this will inadvertently cause said dimension/reality to be purged. 

In any case, Dimension Dilation should only be used as a last resort and should be carefully consulted with the party before being used.