A 30 foot radius sphere centered on terrain you can see within range becomes dimly lit if it was dark and bright if it was dim. Once as a reaction the caster may rewind any individual creature’s turn or environmental effect that occurs within the space. Any resources expended in the rewound turn are regained, but any actions performed and movements made simply didn't happen. All damage dealt by and to that creature in that turn is undone. Once a turn is rewound, the spell ends. A creature’s turn can no longer be rewound after the first actions of the next creature’s turn.