In Castlevania: Symphony of the Night, the 'Healing Mail restores about 1 HP of damage for every three seconds of continuous walking. It also grants a +4 DEF boost, which is the same as the Iron Cuirass.
In Castlevania: Harmony of Dissonance, the Healing Mail grants +15 DEF and restores HP while not moving. There is also a similar armor, the Walk Armor (called Heal Walker in the Japanese version), which restores health only while in motion, but has twice as much DEF (30), which is the same as the Scale Armor.
In Castlevania: Portrait of Ruin, the Healing Mail restores Jonathan's HP while walking. It grants +12 DEF, which is 3 more than the Copper Plate, but 3 less than the Iron Plate. It's located in the City of Haze, inside a hidden room accessed by breaking a part of the ceiling midway through the underground railway with the pump trolley. Since this entrance is high above, it can only be accessed later in the game, once the player has acquired means to reach it (such as Owl Morph or Griffon Wing).
|Item Data: Healing Mail|
|Image||Name - Game|
|Type / Users||Attributes / Consume||Statistics / Sell||Found||Notes|
|Restores HP while walking|| Body (Body Armor)|
| DEF +4|| Find: Clock Tower|| Effect: HP +1 per 3 seconds when walking|
|While standing still, this armor restores its user's HP slowly.|| Body|
| DEF +15|| Find: Clock Tower (Castle B)|| Effect: Recover HP while standing still.|
|This armor restores its user's HP when in motion.|| Body|
| DEF +30|| Find: Luminous Cavern (Castle B)|| Effect: Recover HP when walking.|
|Armor that heals HP as the wearer walks.|| Body Gear (Armor)|
| DEF +12|
| Find: City of Haze|| Effect: Heals HP as the wearer walks.|
|Armor that heals HP as the wearer walks.|| Chest (Body Armor)|
Jonathan, Julius, Richter, Shanoa
| DEF +12|
| Rarity: *****|
Drop: Puppet Master (Hard), Ryukotsuki (Normal)
- Game FAQs - SotN Item Evaluation Guide