It is unlocked at Earthen Heart rank 12.
- U5: Fixed an issue where this ability's graphical effect would be removed when an ally activated the Protective Shell synergy. 
- U6: Reduced this ability's Synergy radius 2.5 meters, and increased the strength of the shield produced by the Synergy to 100% of your maximum health from 85%. 
- U9: This morph no longer grants a synergy to allies for a powerful damage shield; instead, it automatically applies the damage shield on nearby allies when the ability is used.
- U9: Increased the radius of the shield application to 8 meters from 5 meters. 
- U3: This ability no longer stacks if you recast it before the duration expires. We also fixed an issue where this ability was doing 10x damage than intended. 
- U7: This ability's buff will now follow the standard rules for area of effect maximum targets.