Raven Crowking said:
Excepting, of course, that in the low-magic campaign world, you are generally using much lower CR foes. Indeed, this is a world in which level 20 characters are so powerful, that they are generally heads of state and dealing with other things than just knocking in doors & taking stuff. At this point, there's more XP to be had from story awards than from monsters.
So, wait...are you really saying "well, at 20th level you don't fight, so it doesn't matter that anything can beat the crap out of you"?

This has no implication when discussing game balance.
I took a 20th level character as an example not because it was advantageous to me, but because he had better odds at surviving against a monster than a 15th level one.
Anyway, since the CR 9 seemed to be too strong for him, wanna try it with a CR 7 opponent? The problem is that CR 7 opponents have so few HP ( take, for example, a Chimaera...it has 76 HP ) and low AC that either your party kills them in a second ( if you're in a party ) or they deal you a significant amount of damage in a round...
take the aforementioned Chimaera....:
average damage is :
11x50% + 8.5x50%+ 8.5x50%+ (5.5x40%)x2= 18.4 damage/round.
8 round/day against a
single chimaera at lvl 20 before you die.
But it has 76 HP: this means that if you win initiative, your party can kill it before it gets its chance to act. Put more than 1 chimaera, and your fighter will take 18.4...well, you know where this is going.
Well, first off, when the D&D guy dies, it's due to more than being "tired".
Well, when a D&D guy dies, under these rules, is for being "tired" from yesterday...:/
(Usually, you only recover 1Hp/level/day when adventuring, so recovering may take a bit... in other words, you'll end up losing more HP/day than you can recover.)
Secondly, Conan simply doesn't die in any of the REH stories....although REH does have stories where his heroes do die, and where they can be laid up due to injuries. Indeed, in one of the Howard stories, Conan is crucified, and he is definitely in need of nursing back to health thereafter.
RC
Yeah, because he's physically injured.
After he fights, however, unless he suffered real wounds, he doesn't need to be healed.