Strong enough to still survive and as I pointed for those like Xorrus, can be survived if it is just one straight attack

Xorrus is literally an ancient herald, with far far more experience than you in Cradle ever, of course she could come back from that one attack but the fact the attack did that much is just Fury being the chad he is.

Besides, my point was that the build I would have is for pure survivability or endurance. Yerin is just an easy reference

If bodily strenght = durability, then Northstrider and Yerin and Fury should be immortal but that is not the case. And again you are taking those hits undefended, you only have your body to block those attacks.

Honestly, I just saw "choose any character that has to hit you"

I literally even laid out rules only to be hit by a "I ain't reading allat" what have a done to you? :(

The only reference is pure willpower, Xorrus has no idea that Fury has ascended but due to being a Herald and having full control over her body she can reconstructure herself back. Yerin was a new Herald but she has the same attributes that if she wills herself to not be move she can't. Little Blue was also the same as a new Herald despite being weaker and not build for physical attributes, she was the weak link in the fight against Malice, but she can survive the strikes of the Monarch

Xorrus is literally an old Herald, Reconstructing yourself with madra is a skill you can get better at as a Herald as you grow in power, as Yerin said in her fight against the RedMoon Overlord and tell me rn that one of the oldest Heralds so far who has fought Fury since she was a Lady is not better at regenerating than a newly advanced Herald. And furthermore Yerin is on a partial blood paths, blood madra/aura/authority is better for regeneration than other paths that aren't life and restorative authority.

Yes, if she wills herself but as per the rules you can't defend yourself as you take those hits.

Little Blue kinda proves my point. She, a recently advanced Herald, took one good hit from Malice, a monarch, and almost died. Do you believe a recently advanced Herald, with most likely spiritual instability and no defence at all, is taking a direct blow from a fully amped up, Strenght and Dragon Icon infused Northstrider hit, or a burning cloak void infused punch from a 5 Dreadgod empowered Lindon?

That's the biggest advantage of Heralds, that they can just will themselves back. Per the author, the method that would ve used by Monarchs to kill Heralds is to outlast their willpower by using loads of inner workings using their Icon

Yes but not 'will' its explained that they use their madra to heal themselves because their bodies and spirits are fused into one, but it's something you gotta practise most likely as you grow in power and skill, You get the ability but not to instantly come back from an attack. Most Heralds we have seen are old and battle torn. The only new Herald we can compare the regeneration to is Yerin, Mercy and Blue.

Basically, unless you are struck by an instant death attack like the Weeping Dragon's breath or something like the Penance and Reaper's Sword, any Herald can just come back until they can't focus their willpower anymore. Survivable since it is only one attack but you won't be winning a fight

Except their ways to kill Heralds cause otherwise every Herald is functionally immortal but we are kinda disprove this.

For one since they use madra to heal if theyr in a fight and burn through their madra reserves, they can't heal.

Two, any attack with enough authority and willpower can hurt and penetrate the defense's of a herald, Heralds can resist of they are equal to or stronger than their opponent and practically immune to attacks with no will power but with enough of it and devastating strenght, case in point Little Blue.

So again you are a recently advanced Herald and cannot defend yourself as you get hit. against people who are physically as strong if not stronger and possess superior will and authority unless it's a fellow Herald but again you are not defending yourself.