Death Sentence [AoD]

You touch a creature and hang a cord of death around it.

For the duration, a creature affected by this spell automatically fails death saving throws, and Wisdom (Medicine) checks made to stabilize it are made with disadvantage. This spell persists after the death of the affected creature, preventing it from being revived or reanimated until the spell's duration ends or until it is dispelled.

If this spell is cast on a creature that is under the effect of the death ward spell, both spells are instantly dispelled. The same is true if the death ward spell is cast on a creature that is under the effect of this spell.