From DDO wiki
 Golem's Heart
- Minimum Level: 28
- Double-click to upgrade an item to allow a 2% chance on your being hit to heal you for 20 to 120 Hit Points and deal 50 to 300 Electric damage to your surrounding enemies.
- This augment can go in a Blue, Green, or Purple Augment Slot.
- Average of 1.2 healing and 3.5 damage per hit taken.
- When triggered during combat, it will provide healing for all 3 possible player Racial types: Undead (Negative energy), Warforged/Bladeforged (Repair energy) and Living (Positive Energy). However, only the type that matches your current or most recent Racial type will actually heal you when triggered.
- A Study in Sable - Epic Elite, End Chest