No Mither needs a rework, or a buff, at the minimum. Here's what I think:

While the changes over the years have certainly helped it be better, it's still terrible. Eventually, though, I think I kind of get the theming behind the perk. Let's refresh our memory with the effect and why it's bad.

The following effects apply permanently during the Trial:

• Suffer from the Broken Status Effect.
• Reduces the volume of Grunts of Pain while either in the Injured or the Dying State by 25/50/75%.
• Increases your Recovery speed by 15/20/25%.
• Unlocks the Self-Recovery ability, allowing you to fully recover from the Dying State.

Multiple problems.

1 - In trade for a health state, you're put into, effectively, a buffed injured state with no protections whatsoever.

2 - The killer can easily see you're running the perk, and simply put, would know not to slug you at any cost. It's one thing to anticipate an Unbreakable. It's another thing to know they can recover from dying every time.

3 - Any synergies it has are either buff the existing values (Iron Will / Tenacity / Unbreakable), reduce the risk of running it (Dead Hard / Information perks), or used to manually activate perks that activate whilst injured (This can't be happening / Resilience / Deadline). Which aren't that powerful, nor make it worth running.

And keep in mind, you're trading a health state in return for:

Essentially being in Healthy, but being one-downed (Think of always being exposed as a perk, that's basically what this is.)

Free Information to the killer that you counteract a playstyle that isn't always used

And remember that health states in this game are extremely powerful. Anything that grants an additional life, let alone for free has been historically nerfed repeatedly. So a perk that takes away a Health state in return for negligible upsides isn't a very good idea. All risk, no reward.

So, let's start brainstorming. For one, David King is portrayed as a reckless protector. Prone to picking fights, oftentimes ones he shouldn't pick, for the sake of protecting not just himself, but the people he cares about. "We're gonna live forever" is proof of that.

"No Mither" literally means "No care", or "Unbothered". The idea originally, is that in trade for a health state, you become more self-sufficient. Hence the Broken status effect, since you can't be bothered to let other people care about you. "You can handle yourself", basically, which fits David's schtick.

So, lean into that aspect by having it so that No Mither, at the cost of a health state, give you a self-regenerating health state.

Obviously, it'd have to be on a cool down whenever it triggers. Maybe making it so you always have the Endurance status effect, and only you can recover from deep wounds in trade for it taking longer than normal. Or have it work like Mettle of Man and just ignore the hit before going on a long cooldown.

Whatever it is, it must be slower than normal heal rates. If it's faster, or god forbid as fast, then we reach a problem where No Mither becomes meta, and suddenly hitting survivors offers no pressure whatsoever. Messing with health states is a delicate matter, one wrong move, and we'll be stuck with something horrifying.

Perks like "Moment of Glory" seem to fulfil the same concept, but the cost of Moment of Glory requiring you to search chests and avoid the killer long enough to heal a health state. So No Mither has to be a passive, more than anything to have it be unique.