From Guild Wars 2 Wiki
Health Vessels increase the number of hearts of players inside Super Adventure Box. Players can obtain two of them, one per world, by defeating the final boss of each world in any mode.
- Dialogue upon obtaining a Health Vessel
- Unknown: Health Vessel: Gives you an extra heart.
- Locked Health Vessels have this appearance compared to the unlocked heart .
- Health Vessels and how players obtain them are based of the Heart Containers from the The Legend of Zelda series.