Undo Catastrophe

You wrench a disastrous moment backward and force it to occur differently.

Choose one creature within range. One of the following happens:

• If the creature was reduced to 0 hit points, it instead drops to the number of hit points it had at the start of the current round.
• If it failed a saving throw, it rerolls the save with advantage.
• If it was hit by a critical hit, the attack becomes a normal hit instead.

Once a creature benefits from this spell, it cannot benefit from it again until it finishes a long rest.