Timely Warning

You mark in your mind the exact moment that a creature within 60 feet that you can see is the hit by an attack or fails a saving throw, and then your future self from a few moments ahead in time travels back to just before the event to deliver a warning to the creature.

If the target is hit by an attack, you can force the attacker to reroll its attack roll. The attacker must use the result of the second roll. If the target failed a saving throw, you can allow the target to reroll its saving throw. The target must use the result of the second roll.

When the spell ends you vanish, transported back in time to deliver the warning. At the end of your next round, you reappear in the space you occupied, or the nearest unoccupied space. If you become incapacitated or otherwise incapable of delivering the warning when this occurs, you and the target each take 2d10 force damage as time momentarily unravels.