I think that "use this score for some skills, checks, and saves/defenses" is how most classes treat 2/3 of their ability scores anyways.If HP gain is fixed(either a flat value or HD per level, or some combination thereof), and Con serves no role other than to determine fortitude defense/saves, then why not simply eliminate it entirely? Giving players some tangible benefit beyond their fort save though choosing to buff their con at the expense of another score is a good thing IMO, at least as long as we're intending to keep the 6-stat system and con being a part of that.
Otherwise if all Con does is modify the fort save, we might as well just use some other score that's more relevant to the overall game(like strength) and eliminate con entirely.
Does str add its damage per level? Or Dex add to initiative per level? Con should certainly add to hit points, but that doesn't say anything about per level being the correct answer.Yeah, exactly. You will never attack a monster using your constitution in DDN, so I don't see why it's unbalanced to let the stat serve its intended purpose, it's raison d'etre, which is to boost your hp per level. Useless stats will get dump statted. Front-line fighters should cherish it, and rightfully so.
Yeah, that works well enough for playing the game, agreed.The particular issue with wasps has do with if a 1HD creature can represent a hero (the PC's), then there isn't a lot of room beneath that of a PC to provide graduated distinctions between other creatures without resorting to fractions. For example, you could concievably have a situation where an adult (1 HD), a child (1/2 HD), a rat (1/2 HD??), a mouse (1/4HD), and a wasp (1/8 HD) all had the same hit points - '1'. Worse, they could all do the same amount of damage on an attack - '1'. So, now the adult farmer, the child, the rat, the mouse, and the wasp all are capable of killing each other with a single blow. Clearly the wasp ought to be represented by values much less than '1', but without doing some sort of fractional accounting - "Take 1/10th of a hit point in damage" - that's hard to represent. Also, even if you could find a way to represent it, describing what happens when the wasp is the target of an 'Enlarge Creature' spell isn't easy. That later sort of problem, trying to come up with rules that described changes in strength or HD, is what wrecked my attempts at a resolution to this in 1e (it involved treating numbers like 1d2-3 as representing a percentage chance to do 1 damage, rather than a 0 or a 1). Now that I've got more tools, I might come back to it.
For the moment though, the 'house cat problem' (what to do with numbers smaller than 1) isn't my big problem. Given creatures hit points as a result of size means that the wasp can't easily kill the mouse, the mouse can't easily kill the cat, and the cat can't easily kill the farmer with his hoe because they have steadily increasing hit points guaranteed. It's good enough for the moment.
[MENTION=17077]Falling Icicle[/MENTION] - There's nothing that says you can't do that in your own games.
Does str add its damage per level? Or Dex add to initiative per level? Con should certainly add to hit points, but that doesn't say anything about per level being the correct answer.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.