Replenishment is a Miracle in Dark Souls 2. To cast a Miracle, you must use a chime or Special Weapons that can cast Miracle.
"An intermediate miracle.
Gradually restores HP.
This miracle is used by the resolute Lindeldt cleric knights when fighting on the front lines."
Scholar of the First Sin added:
"There is a story, passed down through generations, claiming this band of knights once felled a poisonous dragon which menaced an entire nation."
- Slow Health Regeneration, ca. 7 HP/sec, duration 120 sec