- Pulse Reduction
- Heart Rate Reduction
User can reduce their heartbeat, slowing blood loss and soothing others by the sound.
- May be constantly active.
- If the user's heart is destroyed power is lost.
- Heartbeat Amplification
- Emma Tig (Legacies); via Spell Casting
- Jotaro Kujo (JoJo's Bizarre Adventure Part III Stardust Crusaders)
- Batman (DC Comics)
- Tim Drake (DC Comics)
- Richard B. Riddick (The Chronicles of Riddick)
- Cotton Hill (King of the Hill)
- Makoto Naegi (Danganronpa 4: Keyknives Nobodies Connections & Hearts)