If you have the requisite feats to act normally below 0, and achieve Mythic Tier 10 (thus becoming unkillable to all but crits/CDGs performed with artifacts), does that mean you are perfectly fine into infinite negative hit points?
BRB making an unwinnable encounter with a Mythic 10 Orc Barbarian.
Does Mythic Tier 10 gives explicit immunity to disintegrate? Because if not and it reduces the hp to 0 the body will be destroyed, If immortality feature works like it was in playtest it will reconstitute the mythic character (it restored one to life regardless of state of the body). Still the encounter will be "won". At least until one finds the way to mythically capture the barbarian's soul. Or crafts a mythic slayer artifact.
I'm pretty sure the level 10 ability is only meant as an update to the level 9 version.
Meaning you can still be killed by everything, you just wont stay dead unless killed by artefact crit/coup de grace.
Meaning literally "can't get the dead condition" does not make any sense.
"Oh, I was disintegrated and don't have any body anymore. But at least I'm not dead and can still take all actions!".....
But yeah, that's not what it says right now....
But that ability is generally quite exploitable, even with the "doesn't stay dead" reading.
A Level 20/Mythic 10 Aberrant Sorcerer (EX immune to critical hits and Coup de Grace) is effectively an IKEA tarrasque....
Is this why all those epic villains are only killed by a specific weapon striking in their one weak point? (crit by an artifact)
They've been at negative several million hit points for so long and never bothered to heal, so a single crit kills them.