Wither and Bloom

Choose a 10-ft. radius area within range. Creatures of your choice in the area must make a CON save, taking 18 (4d8) necrotic damage on a failed save, or half on a success. One ally in the area may regain hit points equal to half the necrotic damage dealt to one affected creature.

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