• Char.java - heal() methods (lines 782-811)
• Bat.java - Vampiric healing via attackProc (lines 36-42)
• PotionOfHealing.java - Healing potion implementation

This mechanic is implemented in Java, no JSON configuration exists

<string name="Bat_Desc">These brisk and tenacious inhabitants of cave domes may defeat much larger opponents by replenishing their health with each successful attack.</string>
<string name="PotionOfHealing_Name">potion of healing</string>
<string name="PotionOfHealing_Desc">A potion that restores health when drunk.</string>

This mechanic is implemented in Java, no Lua script exists

• Bat (Mob) - Uses healing mechanic via vampiric attack
• Potion of Healing - Consumable healing item
• Healing Spell - Spell-based healing