I honestly don't like the theme of warriors, insofar that while I enjoy the idea of a tank so angry they ignore that they ought to be dying right now, the current system does not truly implement that for me.

That being said, I would not even want to do some massive changes to every abiltiy to facilitate what I feel would be a better theme, but rather just one "big" change: Other than Equilibrium, everything now shields instead of healing. Stackable shields, too. So that, numerically, the EHP is ~same, but for feeling/style reasons, Warriors now ignore damage instead of taking it and then re-healing afterwards.

This might be a person thing, but this healing-from-dealing damage I associate with a drain tank, or maybe even a drain healer like the Blood Mage of Vanguard. And drain tanks always have a bit of a necro feel to me, I could see Dark Knight being that lore-wise, or I could see a Reaper have a lot of drain self-healing as a DPS, etc. But a Warrior, an unstoppable berserker, I would associate mentally with flat out shrugging the incoming damage off instead of healing themselves by draining HP. Dunno, just not a good lore-fit IMO, although I grant that since I intentionally would not want it to mess up the current balance much - that'd be a separate step then - it would not be a change in how the job plays, except for some ability timings (since you'd stack shields before the hit, Bloodwhetting for example might need to be inverted in some regards).

A more extreme variant of that would be:

* Damage of most abilities reduced.
* Healing or shielding added to ~all attacks.
* All defensive CDs changed to provide variable amounts of damage increases for either a certain time or a certain amount of attacks. Some of these also increase the % of damage that heals/shields.
* Net result: Comparable damage and survivability as now, but the latter is more spread out.
* Bloodwhetting would become a way to briefly "spike" the healing or shielding in anticipation of bursts. Holmgang as invuln remains of course. Thrill of Battle remains as another "true" defensive CD, plus it already increases healing taken so the numbers just need to be adjusted.

Like the shields-instead-of-healing, this would feel "more fitting" IMO, as it would even more so lean into the berserker-tank, not even having any real defensive CD, just going wild and smashing the enemy's face, and the harder they do, the more damage they can shrug off.