Feed on Fear

For the duration, once per round when a hostile creature in the emanation becomes frightened, falls asleep, fails a save against madness, or takes psychic damage from one of your Nightmare powers, you gain temporary hit points equal to your INT modifier and may move 10 ft. without provoking opportunity attacks.

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