A Father's Promise

The bond between you and Valiforn's lingering soul allows you to defy fate itself to protect those who matter most.

While you possess Valiforn's phylactery, when a creature you can see within 30 feet of you would be reduced to 0 hit points, you can use your reaction to cause the creature to drop to 1 hit point instead.

Once you use this feat, you can't use it again until you finish a long rest.