Reality phase

As this spell finishes being cast time seems to break open at a weak seem in time. As the space and time breaks open you take 10d10 physic damage. If the amount of damage makes you fall unconscious you fall unconscious after the spell has finished. Bright light pours out and a voice echos in your mind. “Let the fates be changed”. You can either rewind time back (up to 1 day) or remove one event from history or alter it. The DM decides how these changes effect the game. The strain of casting this spell allows you to only cast this spell 3 times in your life time.