Field of Reaping

Create a 30-ft. cube of reaping shadow within range. Hostile creatures in the field are cursed until they leave. Once per turn when a cursed creature takes damage, it takes an extra 2d6 necrotic damage, and one ally of your choice in the field gains temporary hit points equal to the necrotic damage dealt.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.