Swarm Sanctuary

Turn an area up to 100 ft. across into a protected hive, rookery, nest-field, vermin refuge, or spirit-colony. Chosen creatures inside have advantage on Stealth and Perception checks, and hostile creatures entering are harried, reducing their speed by 10 ft. unless they succeed on a WIS save.

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