Diccío's Death Delayed

As an action, you call forth ancient arcane runes on the ground below you.

The runes apply a warding spell in a 20ft. sphere around you. All living creatures are unable to drop below a quarter of their maximum hit points while inside the sphere. At the start of your next turn, the runes fade, and all living creatures inside the sphere at that time are healed 4d8 + your spell casting modifier hit points.

Any creature that is "Marked for Death" is exempt from this spell's effects

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the healing increases by 2d8 for each slot level above 5th.