The party should get in its last comments before heading out, work out some sort of agenda (which can later be adapted), and present a march order. It was originally planned that SG's babau would join the party before everyone headed out, but if everyone is raring to go, it can catch up later. LR is not playing, so his character will simply be off-screen for the foreseeable future.
Question -
With regard to Half-Celestial, it is a
template, not a monster race. By no means can you use template rules to glean a general "default rule" for races. Furthermore, it
explicitly states advancement based on all HD - that isn't a general rule; it's an exception! (See below for why it's an exception.)
The default for a monster race is that a racial feature advances based on
racial HD - or sometimes not at all (for example, does a Quasit's commune ability ever get better? Not really, since it's capped at six questions.) Furthermore, "by HD" advancement comments generally assume advancement by racial HD, not by class level. Do not confuse this with the fact that
general statements based on HD (such as the effect of color spray) are based on all HD.
Shayuri said:
Fair nuff. I was taking my cue from things like Illithid and Celestial and Fiendish critters, who get to add class level HD to their racial HD to work out SR. But then you have weird ones like the Ogre Mage who's SR is frozen at 19 too, so it can clearly work either way.
Anyway, I take we'll be consolidating our party's composition before we head through the gate, yar?
It seems that the Ogre Mage is a representative example of how things work. It technically isn't allowed to advance racial HD, which is why its SR is frozen. Outsiders, on the other hand, are generally expected to increase outsider HD; as stated before, that would result in an increase in SR. Players are welcome to advance characters by racial HD if an increase in SLA CL or SR (or size, where appropriate) is deemed important.
Celestial and Fiendish are
templates that
explicitly state increases in SR based on all HD. As for illithids, it is possible that an error was made, or that some miscommunication occurred between members of the design team - it is not unknown for writers to make errors when advancing monsters.
Please, please do not interpret the SR advancement of races intended to be played by players (drow, svirfneblin, etc.) as indicating some sort of universal precedent that applies to monstrous races that normally advance by racial HD rather than class level. Races whose SR increases with class levels tend to have explicit statements that their SR increases with class levels.