Inexorable

25% chance to gain an Endurance Charge when you are Hit
50% increased Armour while stationary [1]

Inexorable is a notable passive skill that grants increased armour while stationary and a chance to gain an endurance charge when being hit.

Anointment

Blight anointment to unlock the passive:

Oil #1	Oil #2	Oil #3	Outcome
Crimson Oil	Opalescent Oil	Silver Oil	Inexorable	25% chance to gain an Endurance Charge when you are Hit 50% increased Armour while stationary

Version	Changes
3.16.0	[Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.] Now grants 25% chance to gain an Endurance Charge when you are Hit (up from 15%) and 50% increased Armour while stationary (up from 30%). No longer grants 20% increased Armour or Regenerate 0.3% of Life per second per Endurance Charge.
3.11.0	[Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.] Now grants Regenerate 0.3% of Life per second per Endurance Charge (up from 0.2%) and 15% chance to gain an Endurance Charge when you are Hit (up from 10%). No longer grants Enemies have -5% to Total Physical Damage Reduction against your Hits.
3.9.0	Added a new stat: -X% to Total Physical Damage Reduction from your Hits. This stat has been added to the following clusters: Ophidian Aim, Bladedancer, Splitting Strikes, Spinecruncher, Farsight, Claws of the Pride, Flaying, Master of Force, Adamant, Inexorable, Martial Experience, Kinetic Impacts and Path of the Warrior
3.7.0	Introduced to the game