Quote Originally Posted by Morphic tide View Post
Firstly, your wording seems to be based on the race text. Quoting the sample Totem Giant's version of the Essentia Pool feature as an example of how non-player statblocks do it:
Yep. It's straight from the race one, because that was easier to pull up. Will go fix it, thanks.

Secondly, you may want to refer to Soulspark advancement text or the Soulfused Construct template's text for scaling the Essentia in the nine "advancement" levels so that it can supply the increased capacity and maybe some [Incarnum] feats.
And I actually considered doing that (going 1 point/2 HD as I did implicitly with the current 5), but I was too lazy to check if that's even a thing and how MoI does it. Will put that in there now, though. Thanks again!

Thirdly, the text makes me imagine the "Elders" to be 20 RHD contorted absurdities who develop the anatomy as an advanced age thing rather than mirroring the whole Mishtai mess.
CANON.