Increases Armor and Spell Resistance by 50 for 8 seconds. Grants immunity to knockback and disabling effects for the duration.
- Unlocked at Heavy Armor rank 22.
- Requires 1 Skill Point.
- U6: This ability no longer increases melee damage. Instead, in reduces the cost of CC break for each piece of heavy armor equipped while this ability is slotted in the activity bar. 
- U6: Increased the cost of this ability by 13% for all ranks and morph 
- U6: Immovable now grants the buffs Major Resolve and Major Ward. Each additional rank of this ability increases the duration of the buffs by 0.5 seconds. 
- U6: Increased the cost of this ability by 13% for all ranks and morph