Time Loop (5.5e Patch)

You attempt to force a creature within range that you can see to repeat its last turn. The target must succeed on a Wisdom saving throw, or have its personal timeline adjusted so that it repeats its last action in a preordained loop on its next turn. As the rest of the world may have changed, it attempts to repeat its last action to the best of its ability, including moving the same distance in the same direction, attacking the same target, or taking the same action it previously took.

Where these conflict, you decide which part of the turn takes precedence. While a creature is affected by the spell, it cannot be compelled to move into obvious danger (such as walk off a cliff).